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Full text of "Urban traffic control and bus priority system : final report revision A ; prepared for Federal Highway Administration, Offices of Research and Development"

Tt j 


662 j 


.A3 


no. 


FHWA- 


RD- 


7 3 - 1 1 



irt No. FHWA-RD-73-11 

[ • 



3AN TRAFFIC CONTROL 
xnD BOS PRIORITY SYSTEM 

Vol. III. Maintenance Manual 



DEPARTMENT OF 

TRANSPORTATION 

JUL 2 W4 f 



orr 




*Mt"s o* 



November 1972 
Final Report 



This document is available through 
the National Technical Information 
Service, Springfield, Virginia 22151. 



Prepared for 

FEDERAL HIGHWAY ADMINISTRATION 

Offices of Research & Development 
Washington, D.C. 20590 



NOTICE 

This document 1s disseminated under the sponsorship 
of the Department of Transportation 1n the interest 
of information exchange. The United States 
Government assumes no liability for its contents or 
use thereof. 

The contents of this report reflect the views of the 
contracting organization, which is responsible for 
the facts and the accuracy of the data presented 
herein. The contents do not necessarily reflect the 
official views or policy of the Department of 
Transportation. This report does not constitute a 
standard, specification, or regulation. 



no. 



isss* 



TECHNICAL REPORT STANDARD Tl 



i. Report No. 

FHWA-RD-73-11, 



TANDARD 



l 



2. Government Accession No. 



3. Recipient's Catalog 



jjii>. 



tMV& 



4. Title and Subtitle 

URBAN TRAFFIC CONTROL AND BUS PRIORITY 
SYSTEM. Vol. III. Maintenance Manual. 



5. Report Date 

December 1§72 



6. Performing Organixation Cod* 



7. AuthoKs) 



8. Performing Organixation R apart No. 

GF-14-1001 



9. Performing Organixation Name and Address 

Sperry Systems Management Division 
Sperry Rand Corporation 
Great Neck, N.Y. 11020 



10. Work Unit No. 

FCP 32B1 022 



11. Controct or Grant No. 

FH-11-7605 



12. Sponsoring Agency Name and Address 

U.S. Department of Transportation 
-Federal Highway Administration 
Washington, D.C. 20591 



13. Type of Report and Period Covered 

Final Report 



14. Sponsoring Agency Code 



IS. Supplementary Notes 

The FHWA contract manager for this study is Juri Raus (HRS-33) 



16. Abstract 

An Urban Traffic Control and Bus Priority System has been implemented by the 
Sperry Systems Management Division in the District of Columbia under Federal 
Highway Administration contract No. FH-11-7605, Advanced Control Technology 
In Urban Traffic Control Systems - Installation. The system includes on-street 
surveillance and control elements and a central office data processing facility. 
This manual describes the procedures required to maintain and adjust the system. 

This volume is one of a series of three comprising the 
complete final report on this R&D effort. The others are: 

Report FHWA-RD-73-9 . Vol. I. Design and Installation. 
Report FHWA-RD-73-10. Vol. II. Operator's Manual. 



17. Key Words 

Networks 

Real Time Systems 
Traffic Control Systems 
Traffic Operations 



18. Distribution Statement 

No restriction. Copies of report are 
available from: 

National Technical Information Services 

Springfield, Virginia 22151 



19. Security Clossif. (of this report) 

Unclassified 



20. Security Clossif. (of this page) 

Unclassified 



21. No. of Pages 

174 



22. Price 



Form DOT F 1700.7 (s-«f>> 



FOREWORD 

An Urban Traffic Control and Bus Priority System has been implemented by the 
Sperry Systems Management Division in the District of Columbia under Federal Highway 
Administration contract No. FH-11-7605, Advanced Control Technology in Urban Traffic 
Control Systems - Installation. The system includes on-street surveillance and control 
elements and a central office data processing facility. This manual describes the 
procedures required to maintain and adjust the system. 



Paragraph 
SECTION 1. 



SECTION 



SECTION 



1.1 

1.2 

1.2.1 

1.2.2 

1.2.3 

1.2.4 

1.2.5 

1.2.6 

1.2.7 

1.3 

1.4 

1.5 

1.6 

1.7 

2. 

2.1 

2.1.1 



2.1 

2.1 

2.1 

2.1 

2.1 

3. 

3.1 

3.1.1 

3.1.2 



TABLE OF CONTENTS 

Page 

INTRODUCTION 1-1 

Summary 1-1 

Equipment Drawings 1-2 

Communications Equipment 1-2 

Control Panel 1-3 

Map Electronics and Display 1-3 

Field Cabinet Equipment 1-4 

Vehicle Detector Electronics Unit 1-4 

Bus Detector Transmitters and Receivers 1-4 

Miscellaneous Drawings , 1-5 

Reference Manuals 1-6 

Test Equipment and Special Tools 1-7 

Replacement Items 1-8 

Special Material 1-10 

Equipment List 1-10 

CENTRAL EQUIPMENT 2-1 

General 2-1 

Equipment Location 2-1 

Power Distribution 2-2 

System Cables 2-2 

Telephone Lines 2-8 

Radio Link 2-8 

CIU Configuration 2-9 

FIELD EQUIPMENT 3-1 

General 3-1 

Equipment Location 3-1 

Documentation 3-2 



i 



TABLE OF CONTENTS (Continued) 



Paragraph 




SECTION 


4. 

4.1 

4.1.1 

4.1.2 

4.2 

4.2.1 

4.2.2 

4.2.3 






4.2.3. 


1 




4.2.4 






4.3 






4.3.1 






4.3.2 






4.3.2. 


i 




4.3.2. 


2 




4.3.3 




SECTION 


5, 

5.1 

5.1.1 

5.1.2 

5.1.3 

5.1.4 

5.1.5 

5.2 





Page 

COMMUNICATIONS 4-1 

General Theory 4-1 

2F Receivers and Transmitters 4-1 

3F Receivers and Transmitters „ 4-1 

Central Communications Cabinets 4-4 

General 4-4 

Physical Description 4-4 

Cabinet Wiring 4-4 

Guide to Use of Internal Cabinet Wire Run-List ... 4-11 

Power Supply 4-11 

Field Communications Chassis 4-11 

General 4-11 

Physical Description 4-12 

Type A Chassis 4-12 

Type B Chassis 4-12 

Chassis Wiring 4-12 

SIGNAL DESCRIPTION AND SIGNAL FLOW 5-1 

Signal Description 5-1 

A-Phase Green 5-1 

Hold and Advance 5-1 

Vehicle Detectors 5-4 

Bus Detector 5-4 

Radio Link 5-7 

System Signal Flow 5-7 



ii 



Paragraph 
SECTION 8. 



SECTION 



6.2 
6.2.1 
6.2.2 
6.2.3 

7. 

7.1 

7.2 

7.3 

7.3.1 

7.3.2 

7.4 

7.5 

7.5.1 

7.6 

7.7 

7.7.1 

7.7.2 

7.7.3 

7.7.4 

7.7.5 

7.8 



TABLE OF CONTENTS (Continued) 

Page 

MALFUNCTION INDICATION 6-1 

General 6-1 

Malfunction Indicators 6-1 

Control Panel Malfunction Indicators 6-1 

CRT Display ....... 7 , . 6-1 

Line Printer 6-2 

CENTRAL MALFUNCTION ISOLATION 7-1 

General 7-1 

Techniques 7-1 

Telephone Lines 7-1 

Outgoing Lines 7-1 

Incomming Lines 7-2 

Computer 7-2 

Computer Interface Unit (CIU) 7-2 

CIU Configuration 7-2 

Map Display „ . 7-5 

Control Panel 7-5 

Control Panel Switch Tests 7-5 

Control Panel To CIU Signals 7-6 

Control Panel From CIU 7-6 

Control Panel To Map Display 7-7 

Control Panel To Communications Cabinets 7-7 

Traffic Systems Controller 7-7 



iii 



TABLE OF CONTENTS' (Continued) 



SECTION 



Paragraph 

7.8.1 

7.9 

7.10 

7.11 

7.12 

7.13 

7.13.1 

8. 

8.1 

8.2 

8.2.1 

8.2.2 



8.2.3 

8.2.4 

8.2.5 

8.3 

9. 

9.1 

9.2 

9.2.1 

9.2.2 

9.2.3 

9.3 



SECTION 



Page 

Communications Link Test . 7-14 

Traffic System Detector . 7-15 

Traffic System Communication 7-15 

BPS Detector 7-18 

BPS Communication . . . . r 7-21 

Radio Link . 7-24 

Radio Link Malfunctions 7-24 

FIELD MALFUNCTION ISOLATION 8-1 

Computer Mode Failures 8-1 

Traffic Systems Controller 8-1 

Traffic System Detector and Traffic System 
Communications 



8-3 

BPS Detector 8-3 

BPS Communications 8-3 

Loop Failures 8-3 

Standby Mode Failures 8-3 

ALIGNMENT PROCEDURES . 9-1 

General 9-1 

Central Equipment Alignment Procedure 9-1 

Transmitter Output Power . 9-1 

Dual Amplifiers • 9-2 

Receiver Gain . 9-2 

Field Equipment Alignment Procedures ......... 9-3 



iv 



TABLE OF CONTENTS (Continued) 

Paragraph Page 

9.3. 1 Timing Tray Alignment 9-4 

9.3.2 Communications Equipment 9-4 

9. 3.2. 1 Hold and Advance Receiver 9-4 

9.3.2.2 A-Phase Green, Vehicle Detector and Bus 

Detector Transmitters 9-5 

9. 3. 3 Vehicle Detector . 9-6 

9. 3. 4 Bus Detector . 9-8 

SECTION 10. BUS DETECTOR TRANSMITTER AND DEPOT 

MONITORING EQUIPMENT 10-1 

10. 1 General 10-1 

10.2 Transmitter Control Unit 10-1 

10. 2. 1 Operation 10-1 

10. 3 Bus Detector Transmitter 10-1 

10.3. 1 Operation 10-2 

10.4 Malfunctions 10-2 

10. 5 Bus Detector Transmitter Test Fixtures 10-3 

10. 5. 1 General . 10-3 

10.5.2 Installation Test Fixture 10-3 

10. 5.2.1 Operation 10-3 

10.5.2.2 Malfunction 10-3 

10.5.3 Operational Test Fixture 10-3 

10. 5. 3. 1 Operation 10-4 

10.5.3.2 Malfunctions 10-4 



TABLE OF CONTENTS (Continued) 



Paragraph 




APPENDIX A 




A.1 




A. 2 




APPENDIX B 




B. 1 




B.2 




B.2. 


1 


APPENDDC C 





Page 

GLOSSARY A-l 

General A-l 

Explanation of Terms A-l 

SPECIAL TEST FIXTURES B-l 

Map Display Test Fixture B-l 

UTCS FS Equipment Card Extender B-22 

Card Extender Types B-22 

REFERENCE TABLES C-l 



vi 



LIST OF ILLUSTRATIONS 

Figure Page 

2-1 Floor Plan of UTCS/BPS Washington, D. C. , Control Center 2-3 

2-2 Left Power Distribution Panel . 2-4 

2-3 Right Power Distribution Panel 2-5 

2-4 UTCS/BPS Cable Map 2-6 

2-5 Sample Page (Wire Run List) ^ 2-7 

2-6 Telephone Panel 2-10 

2-7 Input/Output Telephone Line Termination 2-11 

2-8 CIU Configuration 2-12 

2-9 Computer Interface Unit Card Locations Rear UD 1011 2-13 

2-10 Computer Interface Unit Card Locations UD 1012 2-14 

2-11 CIU Cable Assembly 2-15 

2-12 CIU Card and Connector 2-16 

3-1 Pad Mounted Cabinet 3-3 

3-2 Detector & Communications Tray CB Position Assignment 3-4 

3-3 Pole Mounted Cabinet 3-5' 

4-1 Frequence Division Multiplexing „ 4-2 

4-2 3F Signal Logic . 4-3 

4-3 Central Communications Cabinet 4-5 

4-4 Communications Modules Pin Connections 4-7 

4-5 Digital Connector Block 100. 4-8 

4-6 Digital Connector Block 200 4-9 

4-7 Audio Connector Block 300 4-10 

4-8 Sample Page I Internal Wire List 4-14 

4-9 Sample Page 3-24 Internal Wire List 4-15 



vii 



LIST OF ILLUSTRATIONS (Continued) 

Figure Page 

5-1 A-Phase Green Signal Flow Diagram 5-2 

5-2 Hold and Advance Signal Flow Diagram . . 5-3 

5-3 Vehicle Detection Signal Flow Diagram 5-5 

5-4 Bus Detection Signal Flow Diagram . 5-6 

5-5 Radio Link Signal Flow Diagram r f 5-8 

5-6 UTCS/BPS Signal Flow Diagram 5-9 

6-1 Malfunction Indicators 6-3 

7-1 CPU No. 1 Fault Diagram 7-3 

7-2 CPU No. 2 Fault Diagram 7-4 

7-3 Traffic System Controller Fault Program 7-9 

7-4 A-Phase Green Signal Tracing Central (Sample) 7-12 

7-5 Hold and Advance Signal Tracing (Sample) 7-13 

7-6 Traffic System Detector Fault Diagram 7-16 

7-7 Vehicle Detection Signal Tracing 7-17 

7-8 Traffic Systems Communications Fault Diagram 7-19 

7-9 EPS Detector Fault Diagram 7-20 

7-10 Local Bus Detection Signal Tracing (Sample) 7-22 

7-11 BPS Communication Fault Diagram 7-23 

7-12 Radio Link Interface Unit Schematic SYN Relay Connections 7-25 

7-13 Radio Link Interface Unit Schematic SGN Relay Connections 7-26 

9-1 Vehicle Detector 9-7 

B-l Map Fixture, Front Panel B-3 

B-2 Map Electronic Circuit Card Location . B-4 

B-3 Map Fixture Schematic B-5 

B-4 Extender Boad, Front Panel B-23 

B-5 Extender Boad, P. C. View B-24 

viii 



LIST OF TABLES 

Table Page 

1-1 Reference Manuals . 1-6 

1-2 Standard Test Equipment |-7 

1-3 Special Tools 1-8 

1-4 Consumable Items 1-9 

1-5 Special Material 1-10 

1-6 UTCS BPS Equipment Complement 1-11 

5-1 System Signal Levels . 5-10 

6-1 Malfunction Indications 6««4 

B-l Map Display Test Fixture, Controller Address/ Location ..... B-<8 

B-2 Map Display Test Fixture, Link Test Address/Location B-13 

C-l BPS Signal Connections to CIU C-l 

C-2 Vehicle Signal Connections to CIU C-2 

C-3 Communications Signal Connections to CIU C-4 

C-4 Control Panel Signal Connections to CIU C-5 

C-5 Radio Link Signal Connections to CIU C-5 

C-6 Control Panel Signal Connections From CIU C-6 

C-7 Map Display Signal Connections From CIU C-6 

C-8 Communications Signal Connections From CIU C-6 

C-9 Input Telephone Line vs Amplifier Module Location C-8 

C-10 Chassis Type vs RFL Drawing Number C-10 



ix/x 



SECTION 1 
INTRODUCTION 

This manual describes the procedures and detailed equipment documents required 
by a trained operator or technician to maintain the Urban Traffic Control System (UTCS)/ 
Bus Priority System (BPS) in proper operating condition. The UTCS/BPS computer pro- 
gram provides for the continuous detection and recording of system malfunctions. The 
operator is informed of a malfunction via three devices: the Control Panel, the CRT 
display and the Line Printer. The techniques described herein allow the operator or 
technician to analyze a system malfunction indication, isolate the malfunction to a parti- 
cular piece of equipment and restore the system to normal operational status. In order 
to accomplish this expeditiously, the documents listed in Table 1-1 and paragraph 1.2 
of this section should be readily available. 

1.1 Summary 

Section 1, Introduction, describes the purpose of this manual and lists the 
primary documents and drawings which should be referred to by the operator. 

Section 2, Control Equipment, describes the layout of the UTCS/BPS Central 
Control Room, the power distributions, and system cable layout. 

Section 3, Field Equipment, describes the two types of cabinets used in the 
UTCS/BPS System, equipment and layout within these cabinets and the documentation 
contained in each cabinet. 

Section 4, Communications, contains a theory of operations of the communications 
techniques used by UTCS/BPS System, a description of the Central communications 
cabinets and how they are wired and a description of the communications chassis used 
in the field and how they are wired. 

Section 5, Signal Description and Signal Flow, describes the various signals 
which a*-e used in the system between the Field and Central or Central and the Field. In 
addition, a complete signal flow for the overall system is described. 

Section 6, Malfunction Indication, describes the various malfunction indications 
on the Control Panel and what equipments could be responsible for each malfunction. 



1-1 



Section 7, Central Malfunction Isolation, describes how to isolate malfunctions 
to the Central equipment in a logical step -by -step procedure. 

Section 8, Field Malfunction Isolation, describes how to isolate the problem 
to a particular piece of Field Equipment, knowning that the Central Equipment is 
functioning properly. 

Section 9, Alignment Procedures, describes how the various pieces of equip- 
ment, both in Central and in the Field, must be aligned after being replaced due to a 
malfunction. 

Section 10, Bus Mounted Transmitter and Depot Monitoring Equipment, describes 
the operation and maintenance of the bus mounted equipment and the function of the depot 
monitoring equipment. 

Appendix A, Glossary, defines terms used in this manual which may be un- 
familiar to the technician. 

Appendix B, Special Test Fixtures, describes the Map display test fixture and 
the Communication Card extender. 

Appendix C, Reference Tables, lists various tables for reference during 
troubleshooting . 

1.2 Equipment Drawings 

The following drawings are required for equipment troubleshooting: 
1.2.1 Communication Equipment 

RFL Dwg. No. Description 

CR-12,500 through 12^515 Wiring Connection Diagrams 

CR-12, 516 Central Communications Cabinet Wire Lists 

HD 35612 Power Supply Schematic 

HE 35602 2F Receiver Schematic 

HE 35607 3F Receiver Schematic 

HD 35617 2F Transmitter Schematic 

HD 35618 3F Transmitter Schematic 

HD 35651 Chassis Assembly 5 Module, Type B 



1-2 



RFL Dwg. No. 
HE 35661 
HE 35631 

1.2.2 Control Panel 
Artisan Dwg- No. 
5001653-1 through 006 
5001651 

5001658 

1.2.3 Map Electronics and Display 
TEC Drawing No. 
006875-100 

006875-120 
006875-601 
006875-602 
006875-603 
006875-604 
006875-605 
006875-611 
006875-900 
006875-901 
006875-902 
006875-903 
006875-905 

991834-003 through 006 

991836-008 

991841-008 

991862-002 

991863-001 

991863-003 

992321-011 

992321-016' 

992398-004 

Sperry Drawing No. 

1-004-2-0-4002 



Description 

Chassis Assembly Type A, 11 Module 

Central Communications Cabinet Assembly 

Description 

Printed Circuit Boards Schematics 

Panel Wiring Diagram 

Card Cage Wiring Diagram 

Description 

Washington Map Display Assembly 

Washington Map Logic Unit Assembly 

Logic Assembly Interface 

Basic Rack (Traffic Signal) 

Quarter Rack (Traffic Signal) 

Basic Rack (Sensor) 

Eighth Rack (Sensor) 

Power Supply 

Wiring Diagram, System 

Wiring Diagram, Interface Logic 

Wiring Diagram, Lamp Cable 

Customer Wiring 

Wiring Diagram - Traffic Signal and Sensor 

Basic Rack, Traffic Signal Quarter Rack and Sensor 

Eighth Rack 

Decoder Schematics 

Schematic, Quad 2 Nand 

Schematic, Lamp Drivers 

Schematic, Traffic Signal Card 

Schematic, Sensor Signal Card 

Schematic, Logic Memory 

Schematic, Line Receivers 

Schematic, Line Receivers 

Schematic, Flashers and One -Shots 

Map Display 



1-3 



1.2.4 Field Cabinet Equipment 

(Wiring information included in each Field Cabinet) 

Marbelite Drawing No. Description 

7006-700-935 Wiring, Timer - 19 circuit 

7006-700-982 Wiring, Timer - 40 circuit 

7019-1000-267 Layouts - 19 and 40 circuit back panels 

7019-1000-271 Layout - Communications Back Panel 

7019-1000-272 Layout - Back Panel for pole-mounted cabinet 

9000-14 Wiring List, Controller Back Panel - 19 circuits 

9000-15 Wiring List, Controller Back Panel - 40 circuits 

9000-17 Wiring List Back Panel (For E. B. 's) 

9000-18 Wiring List, Interconnect Harness, Type I 

9000-19 Wiring List, Interconnect Harness, Type II 

9000-20 Wiring List, Interconnect Harness, Type III 

9000-21 Wiring List - Communications Back Panel 

Type I 

9000-22 Wiring List - Communications Back Panel 

Type II 

9000-23 Wiring List - Communications Back Panel 

Type HI 

9000-100-56 Schematic, Controller Back Panel - 19 circuit 

9000-100-57 Schematic, Controller Back Panel - 40 circuit 

9000-100-58 Schematic, Back Panel for EB's 

TD 11557 Installation Assembly M30 Type Controller 

EB 3123 Interface Internal Harness 

SS 1082 Controller Interface 

1.2.5 Vehicle Detector Electronics Unit 
Decatur Drawing No. Description 

S 780 -57 -E Schematic, Model LHA Loop Detector 

1.2.6 Bus Detector Transmitters and Receivers 
Sperry Drawing No. Description 
1-004-2-0-8221 Receiver Module 
1-004-2-0-8222' Schematic Diagram 
1-004-2-0-8224 Panel 
1-004-2-0-8227 Bracket 

l-OOt-2 -0-8228 Printed Circuit Board #2 Assembly 



1-4 



1.2.7 



Sperry Drawing No. 

1-004-2-0-8229 

1-004-2-0-8230 

1-004-2-0-8231 

1-004-2-0-8232 

1-004-2-0-8234 

1-004-2-0-8240 

1-004-2-0-8241 

1-004-2-0-8242 

1-004-2-0-8244 

1-004-2-0-8245 

1-004-2-0-8246 

1-004-2-0-8247 

1-004-2-0-8248 

1-004-2-0-8249 

1-004-2-0-8255 

1-004-2-0-8258 

Miscellaneous Drawings 

Sperry Drawing No. 

UTCS 4200 (35 sheets) 



Description 

Printed Circuit Board #2 

Printed Circuit Board #1 Assembly 

Printed Circuit Board #1 

Bus Detector Receiver Enclosure 

Receiver Assembly 

Transmitter Assembly 

Schematic Diagram 

Outline and Installation Drawing 

Antenna Blocks 

Antenna Assembly 

Housing 

Transistor Mount 

Bus Transmitter Printed Circuit Board Assembly 

Bus Transmitter Printed Circuit Board 

Transmitter Control Unit Parts List 

Transmitter Control Unit 

Description 

UTCS Installation Drawing 



1-5 



1.3 



Reference Manuals 



The operator or technician should have available, for reference, the documents 
listed in Table 1-1. 



TABLE 1-1. REFERENCE MANUALS 



Manual 



Publication Number 



Company 



1. UTCS/BPS System 
Operators Manual 

2. UTCS/BPS Traffic System 
Software Manual (3 
Volumes) 

3. UTCS/BPS Traffic 
Control Panel 



4. UTCS/BPS Map Display 
Graphics Unit 

5. UTCS/BPS Map Display 
Logic Unit 

6. Instruction Book for 
Map Display System 

7. Operation and Maintenance 
Manual for Frequency Shift 
Communication Equipment 

for the UTCS/BPS Traffic 
System 

8. Manual for UTCS Control- 
lers and Controller 
Adapters 

9. XDS Sigma 5 Computer 
Reference Manual 

10. Real-Time Batch Monitor 
(RBM) Reference Manual, 
XDS Sigma 5/7 Computers 



GF- 16- 1003 



Sperry Specification No. 
1-004-0-0-3200 

Maintenance Procedure 

EPC-11088 

Sperry Specification No. 
1-004-0-0-4000 

Sperry Specification No. 
1-004-0-0-4003 

DPA-6875 



900959 
901581 



Sperry Systems 
Management Division 

Sperry Systems 
Management Division 



Sperry Systems 
Management Division 

Artisan Electronics 
Corp. 

Sperry Systems 
Management Division 

Sperry Systems 
Management Division 

TEC Inc. 



RFL Industries, Inc. 



The Marbelite Co., Inc. 



Xerox Data Systems 



Xerox Data Systems 



1-6 



Table 1-1. Reference Manuals (Continued) 





Manual 


Publication Number 


Company 


11. 


Operation and Maintenance 
Manual for UTCS/BPS 
Vehicle Detector Electro- 
nics, Model LHA 




** 


Decatur Electronics, 
Inc. 


12. 


Bus Detector Transmitter 
and Receiver Installation 
and Maintenance Manual 




- 


EDO Aire 


13. 


Central Site Signal Interface 
Table 


SSMD Doc. 
4-8-2000 


No. 


Sperry Systems 
Management Division 


14. 


Rolodex Cross -Reference 
Directory (Reference 
File Cards) 


N.A. 




Sperry Systems 
Management Division 



1.4 



Test Equipment and Special Tools 



Table 1-2 lists the various types of standard test equipment recommended for 
use in servicing and maintaining the UTCS/BPS System. 

In addition to standard hand tools, the special tools listed in Table 1-3 are 
required for servicing the UTCS/BPS System. 

TABLE 1-2. STANDARD TEST EQUIPMENT 



Item 


Description 


Type and Model Number 


1. 


Multimeter 


Simpson Model 260 Series ^"-P or 
equivalent 


2. 


Oscilloscope, Battery Operated 


Tektronic Model 323 with Power Pack or 
equivalent 


3. 


Oscilloscope 


Tektronic Model 585A or equivalent 


4. 


DBM Meter 


Hewlett-Packard Model 400D or equivalent 


5. 


Electronic Counter 


Hewlett-Packard Model 532 1A or 
equivalent 


6. 


Digital Voltmeter 


Hewlett-Packard Model 3439A or 
equivalent 



1-7 



Item 



7. 
8. 



11. 



Table 1-2. Standard Test Equipment (Continued) 



Description 



Stop Watch 

Strip Chart Recorder 

Signal Generator, Sine Wave 



Type and Model Number 



10. Loop 



Megohmer 



Lafeyette Model 13E31016L or equivalent 

Hewlett-Packard Model 680 or equivalent 

Hewlett-Packard Model 200CD or 
equivalent 

Automatic Control Equipment Model 
LT-100 or equivalent 

Herman H. Sticht Co. Model B-5 or 
equivalent 



1.5 



TABLE 1-3. SPECIAL TOOLS 



Item 


Type and Part Number 


Use 


1. 


Thomas & Betts - Crimping Tool No. WT-452A 


With BT093GP Pins 


2. 


Thomas & Betts - Insertion - Extraction Tool No. 
WT-650 


With BT093GP Pins 


3. 


Thomas & Bettes - Betts - Bus Strip Installing Tool No. 
WT-453A 


With BC-06 and 
BC-010 Bus Con- 
nectors 


4. 


McMaster-Carr - Safety Fuse Puller No. 7074K1 or 
equivalent 


Controller Cabinets 



Replaceable Items 



The maintenance philosophy of the UTCS/BPS System is based on the replace- 
ment of spared black boxes; that is, communication modules, Bus Detector receivers 
and transmitters, Vehiclt Detectors, Map Electronics printed circuit boards, etc. 
However, there are failures that can be isolated to consumable items such as fuses 
and lamps. Table 1-4 lists the UTCS/BPS consumable items. 



TABLE 1-4. CONSUMABLE ITEMS 



UTCS/BPS Unit Name 


Consumable Item 


Type or Part Number 


Total 

System 

Quantity 


Map Display: 








Traffic & Link 
Legends 


Lamp 
Lamp 


Type 387 
Type 757 


577 
224 


Map Electronics: 








5v Power Supply 


Lamp 


Neoif 


1 


Control Panel: 








Panel Switches 


Lamp 


Type 387 


448 


Central Communication 
Cabinets: 








Power Supply 
Power Supply 


Fuse 
Lamp 


0. 6 amp 250v Bussman 
Type HDL or equivalent 
14 Volt 0.08 amp 


120 
10 


Field Communication: 








Power Supply 


Fuse 
Lamp 


3 AG 1/4 amp SLO BLO 
Neon for Drake R118-323 
Dome Ind. or equivalent 


213 






213 


Vehicle Detector 


Fuse 


3 AG 1/2 amp 


479 


Controller Adapter 


Fuse 


3 AG 1-1/2 amp 


111 


Bus Test Equipment: 


Lamp - 






Installation Fixture 


NE-5TH " 


3 


Operational Fixture: 








Signal 
Power Supply 


Lamp 
Fuse 


67 watt Traffic Lamp 
3 AG . 15 amp 


4 
4 


Controller 40 Circuit 


Fuse 
Fuse 
Fuse 
Fuse 


5 amp cartridge - CEFCO- 

5 or equivalent 

10 amp cartridge - ZELL- 

10 or equivalent 

15 amp cartridge - ZELL- 

15 or equivalent 

60 amp cartridge - 

SHAWMUT-OT60 or 

equivalent 


24 
28 
40 

4 



1-9 



Table 1-4. Consumable Items (Continued) 









Total 

System 

Quantity 


UTCS/BPS Unit Name 


Consumable Item 


Type or Part Number 


Controller 19 Circuit 


Fuse 


5 amp cartridge - CEFCO- 








5 or equivalent 


570 




Fuse 


10 amp cartridge - ZELL- 








10 or equivalent 


685 




Fuse 


15 amp cartridge - ZELL- 








15 or equivalent 


685 




Fuse 


60 amp cartridge - 
SHAWMUT-OT60 or 








equivalent 


95 











1.6 



Special Material 



Table 1-5 lists special material that is used in the communications cabinets 
on the interface blocks. 



TABLE 1-5. SPECIAL MATERIAL 



Item 


Name 


Purpose 


1 
2 


Thomas & Betts - Crimp Pins No. BT-093GP 

Thomas & Betts - Bus Connectors No. BC-06 

and No. BC-010 


Used in FS Communications 
Cabinets to interface with 
other equipment 

Used in FS Communications 
Cabinets 



1.7 Equipment List 

Table 1-6 lists the UTCS/BPS Equipment Complement. 



1-10 



Table 1-6. UTCS/BPS Equipment Complement 



Equipment 



Bus Detector Receiver 

Bus Detector Transmitter 

Bus Detector Transmitter Switch 
Control 

Vehicle Detector Electronic Unit 

Controller Cabinet (Pad Mounted) 

Communications Back Panel 

Nineteen Circuit Controller 

Forty Circuit Controller 

Controller Adapter 

Equipment Cabinet (Pole Mounted) 

Back Panel -Pole Mounted Cabinet 

Communications Chassis Type A 

Communications Chassis Type B 

Modular Power Supply 

2 Fsk Receiver 

2 Fsk Transmitter 

3 Fsk Receiver 

3 Fsk Transmitter 

Dual Amplifiers 

Central Communications 
Cabinet Assembly 

Eigma 5 CPU withAntegral IOP 

Sigma 5 CPU withoutAntegral IOP 

Power Fail Safe 

Memory Protect 

Additional Register Block 

Floating Point Arithmetic 

Interrupt Control Chassis 

Priority Interrupt, 2 Levels 

Memory Module (4096 Words) 

Memory Increment (4096 Words) 



Manufacturer 



Type/Model Number 



System 
Qty 



Marbelite 
Marbelite 



EDO -AIRE 
EDO-AIRE 
Signal Stat 



Marbelite 



District Supplied 

Marbelite 

RFL 

RFL 

RFL 

RFL 

RFL 

RFL 

RFL 

RFL 

RFL 

Xerox 
Xerox 
Xerox 
Xerox 
Xerox 
Xerox 
Xerox 
Xerox 
Xerox 
Xerox 



11010 
11020 
800 (Modified) 

LHA 

TBM 2416 
TBM 2469 
M30-19 
M30-40 
TBM 2305 

TBM -25 10 
HE -35661 
HD-35651 
HB 35610 
HB 35600 
HB 24335-5 
HB 35605 
HB 24335-34 
14717 
HE 35631 

8201 
8202 
8213 
8214 
8216 
8218 
8221 
8222 
8251 
8252 



144 
450 
450 

497 

116 

116 

95 

12 

111 

36 

36 

181 

24 

205 

631 

631 

255 

255 

30 

10 

1 
1 
2 
2 
2 
1 
2 
8 
4 
12 



Table 1-6. UTCS/BPS Equipment Complement (Continued) 



Equipment 


1 

Manufacturer 


Type/Model Number 


System 
Qty 


CRT Terminal 


Hazeltine 


H2000 


2 


Control Panel 


Artisan 


UTCS Special 


1 


Map Logic Unit 


TEC 


UTCS Special 


1 


Map Graphics Unit 


TEC 


UTCS Special 


1 


Control Console 


TAB 


UTCS_Special 


1 



1-13/1-14 



SECTION 2 
CENTRAL EQUIPMENT 

2.1 General 

The Central Equipment includes all the UTCS/BPS System equipment located in 
the Washington D. C, Control Center. The Central Equipment consists of the following 
major units: 

(1) Traffic Control Console 

(2) Map Display 

(3) Communications Equipment 

(4) Computers 

(5) Computer Interface Unit (CIU) 

In addition to the above major equipments, there are several minor equipments such as 

the Radio Link. 

2c 1. 1 Equipment Location 

Figure 2-1 presents a floor plan layout of the Washington, D.C. f Control Center, 
The Traffic Control Console located directly in front of the Map Display supports the 
T raffle Control Panel two CRT Displays, the Cross Reference Director and a telephone* 
The Map Display consists of two units. They are the Map Display Unit mounted on the ' 
wall and the Map Electronics Unit adjacent to the CIU in the Communications Room. The 
Communications Equipment consists of ten equipment cabinets in the Communications 
Room. The Radio Link equipment consists of six decoder cabinets mounted on the wall 
in the Communications Room. The Traffic System Telephone Panel is one unit of a 
triple telephone line interconnect box mounted on the wall in the Communications Room. 
The dual computer consists oi a UTCS Computer and a BPS Computer, associated core 
memory, three magnetic tape drives, a two cabinet Rapid Access Disc (RAD), two 
Teletypewriters (TTYs), A Line Printer, a Card Reader and a Card Punch. The 
Computer Interface Unit (CIU) is a dual cabinet unit located in the Communications Room. 



2-1 



2.1.2 Power Distribution 

The UTCS/BPS building floor plan, Figure 2-1, shows the location of the Left 
and Right Power Distribution Panels. Figures 2-2 and 2-3 show the location, size and 
the equipment protected by the power distribution circuit breakers. Each circuit breaker 
is connected to a receptacle under the raised floor in the vicinity of the associated equip- 
ment. The circuit breakers marked (red) should be left in the ON position to prevent 
possible damage to equipment due to power turn on transients or, as in some cases, 
for convience because the equipment is turned on or off by its own local power control 
circuits . „;- 

2.1.3 System Cables 

Several different types of cable are used in FS communication to interconnect 
the UTCS/BPS System* All FS Communication signals are carried on twisted pair cables. 
Six pair and twenty -seven pair are the two types of cables used. All CIU signals are carried 
on 10 wire shielded cables. Eight wires carry 8-bits of data and two wires are used for a 
ground. The shield drain is grounded at the transmitter end only. 

Figure 2-4 shows a cable map of the interconnecting system cables and their 
identifing cable series number. The system cables are documented in the Central Site 
Signal Interface Table (SSMD Document No. 4-8-2000). A sample page of which is shown 
in Figure 2-5. 

These wire -run lists must be used in order to trace a particular signal from the 
outgoing or incoming telephone lines through the Central communications equipment to 
the CIU. The run-list also shows all interconnections between the various pieces of prime 
equipment, exclusive of the computer and its peripherals. On each page, the left side is 
used to itemize signals coming into the unit, while the right side shows all signals going 
out of the unit. As shown in the Table index, all signals are identified. This document 
denotes the detailed connections between units, and all connections are cross-referenced. 
It should be noted that Communications Cabinet Blocks 100, 200 and 300 are referred to in 
this table as Bl, B2 and B3, respectively. 

There are 55 input telephone lines, designated TLI-01 through TLI-55. These 
lines bring in Vehicle Detection, Bus Detection and A -Phase Green signals. There are 
only 24 output telephone pairs, designated TLO-01 through TLO-24. These carry the Hold 
and Advance signals to the controllers. Page 3 of the Central Site Signal Interface Table 
shows to which one of the 10 cabinets (UD501-510) each telephone line input signal goes 
first and from which cabinet each output signal leaves. 



2-2 



i 



TELEPHONE 
ISOLATION PANEL 



COMMUNICATIONS EQUIPMENT 

(UD500) TELEPHONE 

PANEL 





CIU 505 


604 S03|502J50t 




RADIO 
LINK 


[l012 


ton 








Dl 506 


507 


608 


BOslsiO 



\f 






MAINTENANCE & 

AUXILLIARY EQUIPMENT 

ROOM 



LEFT RIGHT 

POWER 

PANEL 



AIR 

CONDITIONED 



COMPUTERS 



CARD 
PUNCH 




MTM 


MTS 


MTM 



MAGNETIC TAPE 
UNITS 



OFFICES 



Figure 2-1. Floor Plan of UTCS/BPS Washington, D. C, Control Center 



2-3 






RAD MASTER 



A 



E&? 



□ 



20 
A 



CPU IA 



9 


20 

A 


1 




II 


20 
A 



CPU 2B 



13 


A 








15 


20 
A 








87 


20 
A 



I/O 5A 



19 


20 
A 








21 


20 

A 



ia 



25 



1/0 28 



27 



29 



20 



20 
A 

20 

r. 

20 
A 



^ * 




"8 « 




■2 M 



M10P 



5P^3Z 



a K'J^ ra ° slave 



30 
A 

30 



14 



CIU 



16 



[jl] 



^^j LABELED IN RED 



Figure 2-2. Left Power Distribution Panel 



2-4 



QJ 



COM RACKS 


5 






COM RACKS 


7 



RAOIO TRANSCEIVER FOR 



VOICE COMMON ICATIONS lN\;\Vsl * 



20 
A 



30 
A 



30 



CARD PUNCH II 



30 



13 



CARD REAOER 



K\\NV\I A 



ICPSCRT ^I?^ 



20 



21 



MTM 



23 



30 
A 



30 



MTS | 25 | 3 ^ 



MTM | 7 1 | 3 A ° 



29 



20 
A 



20 
A 



20 



A K 



MS 



WALL OUTLET 



MAP ELECT 



KEY PUNCH 
10 | WALL OUTLET 



14 



30 
A 



30 



^6^ LINE PRINTER 
TRAFFIC SIGNAL 



18 



RADIOS 



■ I; 



LABELED 
N RED 



r'-irrrv ' ti — rnl 



Figure 2-3. Right Power Distribution Panel 



2-5 



PHONE 

LINE 

TERMINATION 



00700 



CIOOO 



AMPLIFIERS 

AND 

RELAYS 



U03O© 



MMSL 



COMMUNICATIONS 
EQUIPMENT 

U0 500 




CONNECTOR BLOCK JUMPERS ARE LISTED 
FOR EACH COMMUNICATION CABINET AT 
THE END OF THE ASSOCIATED TONE 
EQUIPMENT CABLE DATA. 



Figure 2-4. UTCS/BPS Cable Map 



2-6 



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2-7 



Referring to the sample page of Figure 2-5, the following procedure is used to 
read the data: 

(a) Upper LH corner - Name of major assembly and UD number 

(b) Upper RH corner - Page number, date and revision letter 

(c) LH column 1 - Subassembly name and UD number 

(d) LH column 2 - Cable number 

(e) Input signal information is found in columns 1 through 8 only. 
Column 3 - Signal identification 

Column 4 - Receiver plug and pin number related to Column 1 
Column 5 - Subassembly number of transmitting unit 
Column 6 - Transmitter plug and pin number related to Column 5 
Column 7 - Wire type and color 
Column 8 - Cable length 

(f) Output signal information is found in columns 1, 2 and 9 through 14 only. 
Column 9 - Signal identification 

Column 10 - Transmitter plug and pin number related to Column 1 
Column 11 - Subassembly number of receiving unit 
Column 12 - Receiver plug and pin number related to Column 11 
Column 13 - Wire type and color 
Column 14 - Cable length 

2.1.4 Telephon e Lines 

The interface between the UTCS/BPS Central Equipment and the Field Equipment 
is by telephone lines. There are 79 active lines that enter and leave the Central via the 
input/ output telephone line terminal blocks shown in Figures 2-6 and 2-7. From the 
terminal blocks mounted on the wall the line pairs run to the Communications Cabinets. 
See Figure 2-1. 

The Central Site Signal Interface Table (SSMD Document No. 4-8-2000) lists the 
55 input line pairs designated TLI-01 through TLI-55 and the 24 output line pairs designated 
TLO-1 through TLO-24. It also designates the Communications Cabinet termination point 
and the telephone block (Figure 2-6) termination point. TLR designates the return lead 
of a telphone pair either input or output. 

2.1.5 Radio Link 

The district's master clock and two one-way sign control signals are brought 
into Central via a Radio Link. The rata© rewiver is located external to the Central 
Site. The Radio Link is to be maintained by the District. 

2-8 



The synchronization and sign control tones are brought into Central on two wires into the 
Radio Link Cabinet No. 1 and then distributed to the other five cabinets. The output of 
each cabinet decoder is then sent to the Radio Link Interface Unit installed in the bottom 
of Cabinet No. 1. 

From the Interface Unit the signals go to Connector J-l mounted on the bottom 
of Radio Link Cabinet No. 1. A three wire cable carries the 15th Street One-Way North 
and the 17th Street One-Way South signals and a return to Connector P-13 at the Map 
Electronic Unit (UD 431). Two ten wire shielded cables carry the sync and sign signals 
to the Computer Interface Unit (Section 1012 of UD 1010). 

2.1.6 CIU Configuration 

The CIU configuration is shown in Figure 2-8. It consists of two units, UD 1011 
and UD 1012 Ref. Figure 2-9 and 2-10. Unit UD 1011 contains only input modules while 
unit UD 1012 contains both input and output modules. 

Each input section contains four plug-in card modules. Each plug-in card 
module accepts 16 data bits. Hence, each input section accomodates 64 data bits. When 
the computer addresses the particular section, it receives the 64 data bits in two 32 bit 
words. For instance, for the address 0/9 the words are V4 and V5, each word consist- 
ing of 32 individual vehicle detector inputs. 

The pin connections on one side of the plug-in card module are labeled 1 through 
8. The pins on the other side of the connector are labeled A through H. The 8 bits on 
one side (1-8) are part of one 32 bit word while the 8 bits on the other side (A-H) are part 
of the other 32 bit word. Hence, all four cards contribute to each of the two 32 bit words. 
Figure 2-11 shows the connector assembly. 

In the output section, each section can accomodate four plug-in card modules. 
Each of these card modules can deliver only 8 bits. Hence, the 32 bit word comes out, 
in bit parallel on four cards. For instance, when the computer addresses the output 
word 1/7 the output is the H^ word which is the Hold signal for 32 separate controllers. 

Appendix C lists the data bit number and the associated card location and pin 
connection for all CIU inputs and outputs. 



2-9 




Figure 2-6. Telephone Panel 



2-10 



O'ODDOi O 


O I0DD26 O 


O I0DD02 O 


0*00027 O 


O !0DD03 O 


O I0DD28 O 


O 100004 O 


O I0DD29 O 


O 100005 O 


O S0DD30 O 


O I0DD06 O 


O l0DD31 O 


O I0DD07 O 


O I0DD32 O 


O I0DD08 O 


O 100033 O 


O 100009 O 


O I0DD34 O 


0*00010 O 


O I0DD35 O 


QlODDlf O 


O I0DD36 O 


O*0DD!2 O 


O I0DD37 O 


0*00013 O 


O 100038 O 


O '00014 Q 


O I0DD39 O 


QiODDIS O 


O I0DD40 O 


O I0DD16 O 


QlODD4l Q 


0*00017 O 


O I0DD42 O 


O*oooi8 O 


O 100043 O 


OlODDI9 O 


O 100044 O 


O 100020 O 


O'0DD45O 


O'0DD2! O 


O 100046 O 


O 100022 O 


O I0DD47 O 


O I0DD23 O 


0*00048 Q 


O I0DD24 O 


O'0DD49O 


O I0DD25 O 


O I0DD50 O 



|O'0DD5i O 


O'0DD76 O 


O IODD52 O 


O 100077 O 


O IODD53 


O 100078 O 


100054 O 


O 100079 O 


O '00055 O 


O 


O 


O l0DD56 O 


O 


O 


O IODD57 O 


O 


O 


O 10D D58 O 


O 


O 


O'0DD59 O 


O 


O 


100060 O 


O 


O 


OI0DD6I O 


O 


O 


O*0DD62 O 


O 


O 


OI0DD63 O 


O 


O 


O'0DD64 O 


O 


O 


OI0DD65 O 


O 


O 


O10DD66 O 


O 


O 


OI0DD67 O 


O 


O 


OI0DD68 O 


O 


O 


O'0DD69 O 


O 


O 


O 100070 O 


O 


O 


OiODD7! O 


O 


O 


0*00072 O 


O 


O 


0^00073 O 


O 


O 


QI0DD74 O 


O 


O 


OI0DD75 O 


O 


O 



Figure 2-7. Input/Output Telephone Line Termination 



2-11 



1 
7929 


7969 


7970 





I 



8S| 




8S 2 


64 


BS 3 

BS 4 


64 


BS 5 (I6) 
BT,(32) 


48 

+16 SP 


BT 2 




BT 3 


64 


BT 4 (32) 


48 


BT 5 (I6) 


+ I6SP 


BE, 




BE 2 


64 


BE 3 

BE 4 


64 


BE 5 (I6) 
V, (32) 


48 

+16 SP 


V 2 




v 3 


64 


V 4 

v 5 


64 


v 6 


64 


v 8 




v 9 


64 


V|0 
V|| 


64 


V|3 


64 


V, 4 

V| 5 


64 


V 





( 



7951 4 



7951 4 



7951 4 



7930 — 



| 7951 4 



7951 4 



7951 4 



7951 4 



7931 



( 



7951 


4 


7951 


4| 


795J 


4 


7951 


4 



7931 I— 



I 



7951 


4 L 


795! 


4 t 


7951 


4 i 


795! 


4 



7931 



UDIOU 



r 


« 


7951 


7930 


I 


4 


7951 


2 





4 


795! 



} 






7 


4 


7950 


7931 


8 


4 


7950 


9 


4 


7950 


- 


4 


7950 



s 



7931 



4 


7950 


I 4 


7950 


I 4 


7950 


|4 


7950 



V| 6 (32) 
48+!6SP V|7(|6) 

G 2 

G3 
G 4 



64 
64 



PI 



64 



PI 2 

Pl3 
64 PI 4 (|6)+R (I6) 



} 



16 
24 

32 
32 
32 
32 

32 
32 
32 
32 



PO 

M 

H| 
H 2 

H 3 
H 4 

A| 
A 2 

A 3 
A 4 



\_ 



U0I0I2 



y 



WORD 




DESCRIPTION 


WORD 


DESCRIPTION 


BS 


BUS STOP 


R 


RADIO LINK 


BT 


BUS THROUGH 


PO 


CONTROL PANEL OUT] 


BE 


BUS ERROR 


M 


MAP ELECTRONICS 


V 


VEHICLE DETECTOR 


H 


HOLD 


G 


GREEN RETURN 


A 


ADVANCE 


PI 


CONTROL PANEL INPUT 


SP 


SPARE 



Figure 2-8 CIU Configuration 



2-12 



7951 
INPUT 
MODULE 
PB3I 



_ 


A 




7929 












31 29 27 25 23 21 


19 17 15 13 II 


9 


7 


5 


3 1 


B 




7930 -.: 






31 29 27 25 23 21 


19 17 15 13 II 


9 


7 


5 


3 1 


C 
















D 




7931 












31 29 27 25 23 21 


19 17 15 13 II 


9 


7 


5 


3 1 


E 
















F 




7931 












31 29 27 25 23 21 


19 17 15 13 II 


9 


7 


5 


3 1 


G 
















H 




7931 












31 29 27 25 23 21 


19 17 15 13 II 


9 


7 


5 


3 1 




J 










_ 



Figure 2-9 Computer Interface Unit Card Locations Rear UD 1011 



2-13 



7950 
OUTPUT 
MODULE 
PF3I 







































8 




7969/7970 














31 29 27 25 23 21 


19 17 15 13 II 


9 


7 


5 


3 1 




7930 








31 29 27 25 23 21 


19 17 15 13 II 


9 


7 


5 


3 ! 




c 






D 




7931 
















31 29 27 25 23 21 


19 17 15 13 II 


9 


7 


5 


3 1 




E 






F 




7931 




31 29 27 25 23 2! 


19 17 15 13 II 


9 


7 


5 


3 1 


G 






H 


• 




7931 












>l 29 27 25 23 21 


19 17 15 13 II 


9 


7 


5 


3 1 


J 






















__ 



















Figure 2-10 Computer Interface Unit Card Locations Rear UD 1012 



2-14 



CHASSIS 
CABLE THROUGH 




CONNECTOR 

CABLE TROUGI 



Figure 2-11 CIU Cable Assembly 



2-15 



CONNECTORS 




.NOTE: FOR PIN 
DESIGNATIONS ON 
THIS SIDE USE 
NUM8ERS (I AT TOP) 



NOTE: FOR PIN 
DESIGNATIONS ON 
THIS SIDE USE 
LETTERS (A AT TOP) 



•COMPONENT 
SIDE (RIGHT) 



• CABLE 



(LEFT) 



CABLE- 



Figure 2-12 CIU Card and Connector 



2-16 



SECTION 3 
FIELD EQUIPMENT 

3.1 General 

Two types of cabinets are used to house the field equipment in the UTCS/BPS 
System. They are pad mounted cabinets and pole mounted cabinets. 

3.1.1 Equipment Location 

The pad mounted cabinet, usually called a CB, is approximately 5 feet high x<$ feet 
wide x 2 feet deep. It houses the Timer Tray, Controller Back-Panel, Communications 
Back-Panel, Controller Adapter, Communications Modules and Vehicle and Bus Detectors. 
Figure 3-1 shows the location of these components and identifies other key maintenance 
points. 

The communication trays and modules will vary from cabinet to cabinet 
depending upon the Vehicle and Bus Detector complement for the particular intersection 
in question. However, the Power Supply modules, Hold and Advance Receiver, and 
the A-Phase Green Transmitter will be located in the positions shown in Figures 3-1 
and 3-2 in every controller cabinet. 

The positions of the Vehicle Detectors and Communications Trays are shown 
in Figure 3-2. Vehicle Detector Position No. 1 and Communication Tray Position A are 
the first filled in each cabinet and additional detectors and trays are installed in 
increasing position numbers. 

The pole mounted cabinet, usually called an EB, is approximately 2 feet high 
by 1 1/2 feet wide by 1 foot deep. It contains a small Communications Back- Panel, 
Vehicle Detectors and Bus Detector and Power Supplies Modules. The Bus Detector 
Modules and power supply are contained in a five module wrap-around that is shelf 
mounted. The Vehicle Detectors are also shelf mounted. See Figure 3-3. 



3=1 



3.1.2 Documentation 



Each cabinet contains a documentation package. This package includes at 

least the following information: 

(a) Cam Breakout and Dial Setup Sheet 

(b) Timing Sheet - District 

(c) Vehicle and Bus Detector Hookup CB 

(d) Vehicle and Bus Detector Hookup EB 

(e) Cabinet CB to Cabinet EB Hookup 
(!) Color Sequence Chart 

(g) Cabinet Wiring information 



3-2 



TIMER TRAY 



MAIN CIRCUIT 
BREAKER 

DIAL TRANSFER 
RELAYS 

TB-IO TELEPHONE 
INTERFACE 

FLASHER 
FLASHER RELAYS 



POWER RELAYS 



SIGNAL HEAD 

TERMINAL BOARDS 

TB-I, 2,3,4 




FUSES FOR 

INTERCONNECT 

CABLES 



COMMUNICATIONS 
POWER SUPPLIES | 



AREA FOR 

SPECIAL FUNCTION 

RELAYS 






BUS DETECTOR 
TRANSMITTERS 



CONTROLLER ADAPTER 
(BEHIND TIMER TRAY) 

TBI7-CONR0LLER 
ADAPTER INTERFACE 

TBI6-P0WER 
DISTRIBUTION 
TERMINAL BOARD 

TBII THRU 15 VEHICLE 
DETECTOR INTERFACE 



VEHICLE DETECTORS 



A-PHASE-GREEN 
TRANSMITTER 



VEHICLE DETECTOR 
TRANSMITTERS 



HOLD AND ADVANCE 
RECEIVER 



COMMUNICATIONS 
TRAYS 



BUS 
DETECTORS 



Figure 3-1. Pad Mounted Cabinet 



3-3 



UTCS/BPS 
CB ELECTRONIC EQUIPMENT PLACEMENT 



TBI5 



TBI4 



TBI3 



TBI2 



TB II 



VEHICLE DETECTOR 
POSITION 5a 



VEHICLE DETECTOR 
POSITION 4a 



VEHICLE DETECTOR 
POSITION 3a 



VEHICLE DETECTOR 
POSITION 2 a 



VEHICLE DETECTOR 
POSITION la 



VEHICLE DETECTOR 
POSITION 5b 



VEHICLE DETECTOR 
POSITION 4 b 



VEHICLE DETECTOR 
POSITION 3b 



VEHICLE DETECTOR 
POSITION 2 b 



VEHICLE DETECTOR 
POSITION lb 



-^43 1/2 



^<138 1/4 



~^<33 



^«273/4 



^<22l/2 



COMM. TRAY 
POSITION A 



POWER 
SUPPLY 


1 

HOLD AND 

ADVANCE 

RECEIVER 

1 


A- 

PHASE 

GREEN 

XMTR 

















< 15 3/4" 



COMM. TRAY 
POSITION B 



POWER 
SUPPLY 























< 10 1/2 



COMM. TRAY 
POSITION C 



POWER 
SUPPLY 























NOTE: < - DISTANCE TO CB BASE 



Figure 3-2. Detector and Communications Tray CB Position Assignment 



<J5l/f 



3-4 




Figure 3-3. Pole Mounted Cabinet 



3-5/3-6 



SECTION 4 

COMMUNICATIONS 

4.1 General Theory 

The UTCS/BPS communication techniques involve the use of frequency division 
multiplexing. This enables one telephone line to carry up to 20 signals simultaneously. 
The UTCS systems uses a maximum of 17 signals per line. Each signal occupies a sepa- 
rate 120 Hz bandwidth. The nominal or carrier frequency, L>, of each signal is spaced 
120 Hz away from the two adjacent carrier signals. Thus, 20 transmitters can combine their 
audio outputs into one telephone line and, at the other end, 20 separately tuned receivers can 
extract their corresponding signal from the telephone line. See Figure 4-1. 

The UTCS/BPS System utilizes two different types of receivers and transmitters. 
These are called 2F and 3F. 

4.1.1 2F Transmitters and Receivers 

The 2F transmitter is always on, generating the Space frequency and the 
corresponding receiver output is a +6. 5 vdc level. The application of a +12 vdc signal 
is required to key the Mark input of the 2F transmitter. The transmitter then 
shifts the frequency 60 Hz higher then the Space frequency. This higher frequency is 
referred to as Mark and causes the output of the corresponding receiver to drop to 
volts. 

4.1.2 3F Transmitters and Receivers 

The 3F transmitters have three keying points; Space, Mark, and Oscillator On. 

When the key Oscillator On is energized with a positive voltage the Oscillator 
puts out the carrier frequency, f . When the Space key and key Oscillator On are both 
positive, then the oscillator frequency shifts to the Space frequency, f . When the Mark 

S 

key and key Oscillator On are both positive, then the oscillator frequency shifts to Mark 
frequency, f . The 3F receivers have three outputs; Carrier detect, Space, and Mark. 
If the corresponding transmitter is keyed to f , f or f , as described above, the 
following outputs will be obtained. See Figure 4-2. 

(1) Keyed to f 

The Space output is +12 vdc, the Mark output is +12 vdc and the Carrier 
Detector outputs is + 12 vdc. 



4-1 



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DETECT 

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3F RECEIVER 



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3F TRANSMITTER 



3F RECEIVER 



KEY TO fm 



♦ 6.5 V 



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IF TRANSMITTER 3F RECEIVER 

BINOTii PIN BiildNATiON ON COMMUNICATIONS MODULES 

Fipr % 4»2 e SF Signal Legie 



4 3 



(2) Keyed to f 

S. 

The Space output is vdc, the Mark output is +12 vdc and the Carrier detect 
output is +12 vdc. 

(3) Keyed to f^ 

The Space output is +12 vdc, the Mark output is vdc and the Carrier detect 
output is +12 vdc. 

If the transmitter fails or the key Oscillator On is not keyed or the receive looses 
its input, then the Space output is + 12 vdc, the Mark outputis + 12 vdc and the Carrier 
detect output is vdc. 

Figure 4-2 shows the above signal logic. 

4.2 Central Communications Cabinets 

4.2.1 General 

The Central Communications Equipment transmits Advance and Hold to the field 
and receives A-Phase Green, Vehicle Detector and Bus Detector signals from the field 
over leased telephone lines. It, in turn, converts these communication signals from the 
street to discrete dc levels suitable for input to the CIU and converts the digital discrete 
outputs of the CIU to communications signals. 

4.2.2 Physical Description 

The Communications Equipment consists of ten cabinets (UD 501 through UD 510) 
arranged on either side of the CIU in the Communications Room. Each cabinet is 
67 3/8 inches high by 23 1/4 inches wide by 24 11/16 inches deep and houses 12 horizontal 
communications trays. Each tray is capable of holding 11 modules. A single power 
supply is at the bottom of each cabinet. Each cabinet is capable of housing 17 3F trans- 
mitters, 19 3F receivers, 73 2F receivers and 4 dual amplifiers. The actual equipment 
complement varies from cabinet to cabinet. Refer to RFL Drawing Number CR-12, 516A, 
Sheets 1 and 2 for the pictoral layout of each cabinet. The modules are inserted through 
the front of the cabinet. At the rear of each cabinet are three connector blocks and 
a Relay Panel. See Figure 4-3. Note, there are no 2F transmitters in Central. 

4.2.3 Cabinet Wiring 

All ten cabinets are wired indentically per RFL Drawing No. CR-12, 516A. 
(Sheet 3 is actually a wire-run list for each HD 35630 cabinet and consists of 24 pages.) 



4-4 



A B C E FG H I J K 



AILAY 
PANIL 

014 


■LOCK 
100 




■LOCK 
100 




IDENTIFICATION- 
PANELS 



II X 



.CONNECTOR 
BLOCKS 



TRANSMITTER 
OUTPUTS 

RECEIVER 
INPUTS 



IEYINO 

a 

RECEIVER 
OUTPUTS 



REAR VIEW 
DOOR OPEN 



6R 5X 
I R 5RT 

I R 5RF 
IR 5RF 

3R 4RF 
IDA IOR 

IX IOR 
IDA IOR 

MR 
IDA IOR 

IDA IOR 







X 


X 


X 


X 


X 


X 


X 


X 


X 


^ 


R 


R 


R 


R 


R 


R 


X 


X 


X 


X 


X 


R 


R 


F 


R 


F 


R 


F 


R 


F 


R 


F 




R 


R 


F 


R 


F 


R 


F 


R 


F 


R 


F 


R 


R 


F 


R 


F 


R 


F 


R 


F 


R 


F 




R 


P 


R 


R 


(■ 


R 


F 


R 


F 


H 


F 



A 


R 


R 


R 


R 


R 


R 


R 


R 


R 


R 




X 


H 


R 


R 


R 


R 


R 


R 


R 


R 


R 


D 
A 


R 


R 


R 


R 


R 


R 


R 


R 


R 


R 




R 


R 


R 


R 


R 


R 


R 


H 


R 


R 


R 



A 


R 


n 


R 


R 


f< 


K 


R 


H 


R 


R 





A 


N 


H 


R 


P. 


R 


R 


M 


R 


R 


R 


POWER 
SUPPLY 



"T 



2 

3 

4 
5 

6 

7 

3" 

8 

fr 

10 

II 

13 



I 



II f. 

FRONT VIEW 



COMMUNICATION EQUIPMENT 

X 3 FREQUENCY TRANSMITTER (17) 

RF 3 FREQUENCY RECEIVER (10) 

R 2 FREQUENCY RECEIVER (73) 

OA DUAL AMPLIFIER (4) 



Figure 4-3 Central Cemmunieatien§ Cabinet 



4-3 



Refer to Section 4.2.3.1. Each module tray has 11 connectors. Figure 4-4 shows the 
four different types of connectors. 

A connector block consists of a matrix of pins, the back side of which is wire- 
wrapped to the pin connection of the various module connectors. The pins on the front of 
the block are either jumpered to other pins on the same block, tied to pins on an adjacent 
block, or connected via cable to another cabinet or piece of equipment. Wires are tied to 
the pins on the front of the block using push-on pins. 

The three Connector blocks in the rear of each cabinet are wired up as follows: 

Block Signals * 

100 (Bl) Digital - A -Phase Green and Vehicle Detectors 

200 (B2) Digital - Bus Detectors, Advance and Hold 

300 (B3) Audio - All 

Block 100 contains 16 2F receiver outputs for A-Phase Green on columns A 
through H of rows 1 and 4 and 56 2F receiver outputs for vehicle detectors on columns 
A through H of rows 10, 13, 16, 19, 22, 25 and 28 as shown in Figure 4-5. 

Block 200 contains 19 3F receiver outputs for bus detectors on column A through 
H of rows 1 through 4 and 6 through 8 and on columns A through C of rows 11 through 14. 
It also contains 16 3F transmitter inputs for Advance, Hold and Test on columns A through 
H of rows 19 through 22 and 24 through 27 as shown in Figure 4-6. 

Block 300 contains all the audio signals as shown in Figure 4-7 as well as the 
input telephone line amplifiers and the output telephone line relays. It should be noted 
that all output telephone line signals go through a set of relay contacts before departing 
from central. Each Relay Panel can accommodate three signals. The relays are 
utilized in order to enable the operator to instantly drop a set of controllers from com- 
puter control. Pulling the relay out of its socket is also a useful test technique, allowing 
the operator :o make checks on some Hold ?nd Advance signals without transmitting these 
signals to the field controller. Paralleling up of communications equipment on a single 
telephone line is accomplished by the use of jumpers on Block 300 and jumper cables 
to other communications equipment cabinets as reflected in the Central Site Interface 
Table. Refer to SSMD Document No. 4-8-2000. 



DUAL AMPLIFIER 
COMMON 



TONE 

INPUTN 

NO. I 




TONE 

INPUT' 

NO. 2 



+I2V 



DC GND 



<•> 



5 



TONE 
^OUTPUT 
NO. I 



SPACE KEY 



MARK KEY 



3F XMTR CENTRAL (HOLD 8 
ADVANCE) 
FIELD (BUS) 



}TONE 
OUTPUT 
NO. 2 



O.C. GND 



COMMON 



KEYOSCILL.ON 




TONE OUT 



2F RCVR CENTRAL (VEHICLE DETECTOR 
a A-PHASE GREEN) 



COMMON 



D.C. OUT 




TONE 
IN FROM< 
FILTER 



+I2V 



3F RCVR CENTRAL(BUS) 
FIELD (HOLD a 
ADVANCE) 

-0 
-© 

4 




to 

15 




MARK 



CARRIER DET 



Figure 4-4. Communication Modules Pin Connections 



4-7 



OUTPUT 


PINS 1 


COMMON 


PINS 2 




3 


OUTPUT 


PINS 4 


COMMON 


PINS 5 




6 




7 




8 




9 


OUTPUT 


PINS 10 


COMMON 


PINS II 




12 


OUTPUT 


PINS 13 


COMMON 


PINS 14 




15 


OUTPUT 


PINS 16 


COMMON 


PINS 17 




18 


OUTPUT 


PINS 19 


COMMON 


PINS 20 




21 


OUTPUT 


PINS 22 


COMMON 


PINS 23 




24 


OUTPUT 


PINS 25 


COMMON 


PINS 26 




27 


OUTPUT 


PINS 28 


COMMON 


PINS 29 




30 



^ 



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O 



: ; 




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^J 



^ 



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V 



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8 



(7) 




(7) 




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10 




1 1 




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13 




14 




15 


• 




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• 




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Id 




5 




6 




7 




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P 




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10 




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13 




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19 


20 




21 




22 




23 


24 





© 




© 




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W 




p 

38 



P 
39 




P 

44 



45 




16 2F RECEIVER 
)0UTPUT 
A-PHASE GREEN 




• I 56 2F RECIEVER 
}0UTPUTS 

EHICLE DETECTOR 




P 
54 



P 

56>| 



Figure 4-5. Digital Connector Block 100 



4-8 



MARK (STOP) 

SPACE (THRU) 

CARRIER (ERROR) 

COMMON 

MARK (STOP) 

SPACE (THRU) 

CARRIER (ERROR) 

COMMON 

MARK (STOP) 

SPACE (THRU) 

CARRIER (ERROR) 

COMMON 



ON 



/On 

8 



MARK ( ADV) 


19 


SPACE (TEST) 


20 


CARRIER (HOLD) 


21 


COMMON 


22 




23 


MARK (ADV) 


24 


SPACE (TEST) 


25 


CARRIER (HOLU) 


26 


COMMON 


27 




28 




29 




30 



A 
.' 

2 

3 

A 

6 

7 

6 

9 
10 
91 
12 
13 
14 
15 
16 
17 
13 

r, 



B C 

On On 



ON 



KZJ 



\ZJ 



On 



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o\ 



<c/ 



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On 



19 



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On On 



/On On 



On On on on on 



\y \zj \Zs w \zs 



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<ZJ \3/ VZ/ VZV V3/ 



ON ON ON ON ON 



\ZJ S ^ZJ \U \ZJ \zJ 



ON On On On On 



kzj \ZJ vy v-/ v-/ 



19 3F RECEIVER 

/OUTPUTS BUS 
DETECTOR 



16 3F 
VTRANSMITTER 
INPUTS 



Figure 4-6. Digital Connector Block 200 



4-9 



CABINET 








RELAY < 


4 


• 


© 


INPUTS 


! 








L 5 


{• 


• 




6 • 


• 




7 


• 


• 




6 AUDIO I 
AMPLIFIER < • 
INPUTS I 




2 • 

3( 
4( 






(• 4 


• 

•) 


(• 5 


•) 


(* 6 


•) 



(• ' 


• 




(.3 


•) 


(•• 






• 4 



• 5 




16 3F TRANSMITTER 
OUTPUTS (ADVANCE, 
HOLD, TEST] 

I CABINET 
>RELAY 
| OUTPUTS 



CABINET RELAY 
CLOSURE 



19 3F RECEIVER 
► INPUTS 
BUS DETECTOR 



<f I 6 AUDIO 
►J >AMPLIFIER 
[OUTPUTS 



72 2F RECIEVER 
\ INPUTS 

f |7e A-PHASE GREEN 
56 VEHICLE DETETORS] 



Figure 4-7. Audio Connector Block 300 



4-10 



4.2.3.1 Guide to Use of Internal Cabinet Wire -Run Lists 

1. Internal Wire List, Sheet 3 of RFL Drawing Number CR-12516 - (24 pages) 

e Pages 1 and 2 detail the jumpers found on the wire -wrap side of the 
blocks. The pin matrix consists of columns A through H, reading from 
right to left and rows 1-29, from top to bottom. See Figure 4-8. 

@ Pages 3 through 24 indicate the internal wiring, from the module pins to 
the rear pins of the block. The columns titled CHASSIS NO. and CON NO. 
refer to the location of a particular module, as viewed from the front of 
the cabinet. CHASSIS NO. refers to the vertical position of the module 
from 1 through 12, top to bottom, while CON NO. refers to the horizontal 
location, or slot position, from SI through Sll of a module in a partic- 
ular tray. See Figure 4-9 for a sample page. 

It should be noted that in the Cross-Reference Directory module location is spec- 
ified by a column (A through K) rather than a number. For example, the 2F receiver for 
Vehicle Detector 501 (Field Number) is in position K9 see Figure 4-3. For the wire run 
lists, the 9 indicates Chassis No. while the K is equivalent to S 11 (slot 11). 

4.2.4 Power Supply 

The central communications equipment power supply at the bottom of each 
cabinet supplies the +12 vdc power to all module trays in the cabinet. On the front 
panel of the power supply are mounted the following items: 

(1) Guarded ON -OFF switch 

(2) Indicator Lamp 

(3) Ammeter 

(4) Voltmeter 

(5) 12 Fuses (one for each module tray) 

The schematic for the +12 vdc power supply can be found in the Operation and 
Maintenance Manual for FS Communication Equipment (Table 1-1 No. 7). 

4.3 Field Communications Chassis 

4.3.1 General 

There are two basic types of Field Communication Chassis. The first, Type A, 
is a large wall mounted chassis used in the pad mounted controller cabinets. There is, 
at least one Type A chassis in each of these cabinets and there can be up to three depending on 



4-11 



the number of Bus and Vehicle Detectors in the cabinet* The second type chassis, 
Type B, is used in the pole mounted cabinets (EB) to house Bus Detector receivers. 
It is approximately one-half the size of the Type A chassis and is shelf mounted. 

4.3.2 Physical D escription 

The physical description of the Type A and Type B chassis are contained in 
Sections 4.3.2.1 and 4.3.2,2, respectively. 

4.3.2.1 Type A Chassis 

The Type A chassis is approximately 19 inches Ipng by 12 3/8 inches wide by 
5 1/4 inches high. It houses one power supply module and up to ten communication 
modules. The modules are inserted into the chassis from the front and plug into 
connectors mounted vertically at the back of the chassis. The number and types of 
modules can vary from cabinet to cabinet. Only the active module slots in the chassis 
have been wired. The type number stenciled on the side of each chassis and RFL 
drawings CR12500 through CR12514 define the number of slots wired and the type of 
module that goes into the slot. Blank panels have been provided for each unused slot 
to minimized module contamination. A marker strip has been provided on each 
chassis above the module opening for the purpose of identifying the module required 
for each slot. 

4.3.2.2 Type B Chassis 

The Type B chassis is approximately 9 3/4 inches long by 9 inches wide by 
5 1/2 inches high. It houses one power supply module and up to four Bus Detector 
receivers. The modules are inserted in the same manner as the modules in the 
Type A chassis. The number stencilled on the side of the chassis and RFL drawing 
CR12514 define the number of slots wired. A marker strip is also provided on the 
Type B chassis for module identification purposes. 

4.3.3 Chassis Wiring 

Both types of chassis are supplied with a 4 -loot extension cable for electrically 
connecting the communications equipment to the rest of the system via the terminal 
board panel mounted to the back of the cabinet. All circuit points required fo;r fault 
isolation to the module level are brought out on these leads and are available on the 
cabinet back panel. These points are: the key for each transmitter, the output of each 
3F receiver, +12 vdc from the power supply and the telephone line connection. The 
plug in modules obtain their power from the power supply via bus wiring at the back 



4-12 



of the chassis. Two pairs of telephone lines are used in each chassis containing a 3F 
receiver; one pair for the transmitter and one pair for the receiver. The telephone 
lines are bussed to the transmitters at the back of the chassis and brought out on a 
single pair. 



4-13 



r — 

BLOCK# 


FROM ■ 

C0I# 


ROW? 


100 


H 


5 


100 


H 


11 


100 


H 


17 


100 


H 


20 


100 


H 


23 


100 


H 


26 


100 


A 


2 


100 


A 


11 


100 


A 


Ik 


100 


A 


17 


100 


A 


20 


100 


A 


23 


100 


A 


26 


100 


A 


29 


100 


B 


2 


100 


B 


5 


100 


B 


11 


100 


B 


Ik 


100 


B 


17 


100 


A 


8 


100 


B 


23 


100 


B 


26 


100 


B 


29 


100 


C 


2 


100 


c 


5 


100 


c 


11 


100 


c 


1U 


100 


c 


17 


100 


G 


20 


100 


c 


23 


100 


c 


26 


100 


c 


29 


100 


D 


2 


100 


D 


11 


100 


D 


Ik 


100 


D 


17 


100 


D 


20 


100 


D 


26 


100 


D 


29 


100 


E 


2 


100 


£ 


5 


100 


E 


11 


100 


F 


Ik 


100 


E 


17 


100 


E 


20 


100 


E 


23 


100 


E 


26 


100 


E 


29 


100 


F 


5 


200 


A 


18 


100 


F 


1U 


Figure 4 


-8. Sample 


Pag 



» » ■* 



BL0CK# 

100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 

100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
IX 
100 
100 
100 
100 
100 
100 
100 
100 



1-24 Internal Wire List 



TO- 

COI# 


^ 

R0W# 


1 

WIRE SIZE 


A 


11 


#26KYNAR 


A 


Ik 


#26KYNAR 


A 


20 


#26KYNAR 


A 


23 


#26kynar 


A 


26 


#26KYNAR 


A 


29 


#26KYNAR 


B 


2 


#26kynar 


B 


11 


#26KYNAR 


B 


Ik 


#26KYNAR 


B ->:' 


17 


#26KYKAR 


B 


20 


#26KYNAR 


B 


23 


#26lCfNAR 


B 


26 


#26KYNAR 


B 


29 


#26kynar 


C 


2 


#26kynar 


G 


5 


#26kynar 


C 


11 


#26KYNAR 


G 


Ik 


#26KYNAR 


C 


17 


#26KYNAR 


G 


20 


#26kynar 





23 


#26KYNAR 


G 


26 


#26KYNAR 


G 


29 


#26KYNAR 


D 


2 


#26KYNAR 


D 


5 


#26KYNAR 


D 


11 


#26KYNAR 


D 


Ik 


#26KYNAR 


D 


17 


#26KYNAR 


D 


20 


#26KYNAR 


D 


23 


#26KYNAR 


D 


26 


#26KYNAR 


D 


29 


#26kynar 


E 


2 


#26KYWAR 


E 


11 


#26KYNAR 


E 


Ik 


#26KYNAR 


E 


17 


#26KYNAR 


E 


20 


#26EfNAR 


E 


26 


#26KYNAR 


E 


29 


#26KYNAR 


F 


2 


#26KYNAR 


F 


5 


#26kynar 


F 


11 


#26KYNAR 


F 


11+ 


#26kynar 


F 


17 


#26KYNAR 


F 


20 


#26KYNAR 


F 


23 


#26KYNAR 


F 


26 


#26KINAR 


F 


29 


#26KYNAR 


G 


5 


#26KJrNAR 


G 


11 


#26KYKAR 


G 


11+ 


#26KYNAR 



4-14 



of the chassis. Two pairs of telephone lines are nsed in each chassis containing a 3F 
receiver; one pair for the transmitter and one pair for the receiver. The te.ephone 
lines are bussed to the transmitters at the back of the chassis and brought out on a 
single pair. 



4-13 



r — 

BLOCK# 


— FROM — 

C0I# 


R0W# 


w+*m 

BL0CK# 


■ TO— — 

C0I# 


' ^ 

R0W# 


1 

WIRE SIZE 


100 


H 


5 


100 


A 


11 


#26KYNAR 


100 


H 


11 


100 


A 


1U 


#26KYNAR 


100 


H 


17 


100 


A 


20 


#26KYNAR 


100 


H 


20 


100 


A 


23 


#26kynar 


100 


H 


23 


100 


A 


26 


#26KYNAR 


100 


H 


26 


100 


A 


29 


#26KYNAR 


100 


A 


2 


100 


B 


2 


#26KYNAR 


100 


A 


11 


100 


B 


11 


#26KYNAR 


100 


A 


Ik 


100 


B 


lU 


#26KYNAR 


100 


A 


17 


100 


B J 


17 


#26KYNAR 


100 


A 


20 


100 


B 


20 


#26KYNAR 


100 


A 


23 


100 


B 


23 


#26KYNAR 


100 


A 


26 


100 


B 


26 


#26KYNAR 


100 


A 


29 


100 


B 


29 


#26kynar 


100 


B 


2 


100 


C 


2 


#26KYNAR 


100 


B 


5 


100 


G 


5 


#26EfNAR 


100 


B 


11 


100 


C 


11 


#26KYNAR 


100 


B 


1U 


100 


G 


Ik 


#26KYNAR 


100 


B 


17 


100 


C 


17 


#26KYNAR 


100 


A 


8 


100 


G 


20 


#26kynar 


100 


B 


23 


10C> 


G 


23 


#26KYNAR 


100 


B 


26 


100 


C 


26 


#26KYNAR 


100 


B 


29 


100 


G 


29 


#26KYMR 


100 


C 


2 


100 


D 


2 


#26kynar 


100 


c 


5 


100 


D 


5 


#26KYNAR 


100 


c 


11 


100 


D 


11 


#26KYNAB 


100 


c 


Ik 


100 


D 


Ik 


#26KYNAR 


100 


c 


17 


100 


D 


17 


#26kynar 


100 


c 


20 


100 


D 


20 


#26kynar 


100 


G 


23 


100 


D 


23 


#26KYNAR 


100 


C 


26 


100 


D 


26 


#26KYNAR 


100 


G 


29 


100 


D 


29 


#26K¥NAR 


100 


D 


2 


100 


E 


2 


#26KYNAR 


100 


D 


11 


100 


E 


11 


#26KYNAR 


100 


D 


lU 


100 


E 


11+ 


#26KYNAR 


100 


D 


17 


100 


E 


17 


#26KYNAR 


100 


D 


20 


100 


E 


20 


#26kynar 


100 


D 


26 


100 


E 


26 


#26kynar 


100 


D 


29 


100 


E 


29 


#26kynar 


100 


E 


2 


100 


F 


2 


#26KYNAR 


100 


£ 


5 


100 


F 


5 


#26KYNAR 


100 


E 


11 


100 


F 


11 


#26lCTNAR 


100 


F 


Ik 


IX 


F 


lit 


#26KYNAR 


100 


E 


17 


100 


F 


17 


#26KYNAR 


100 


E 


20 


100 


F 


20 


#26KYNAR 


100 


E 


23 


100 


F 


23 


#26KYKAR 


100 


E 


26 


100 


F 


26 


#26KTNAR 


100 


E 


29 


100 


F 


29 


#26KYMR 


100 


F 


5 


100 


G 


5 


#26KYNAR 


200 


A 


18 


100 


G 


11 


#26KYKAR 


100 


F 


Ik 


100 


G 


Ik 


#26kynar 



Figure 4-8. Sample Page 1-24 Internal Wire List 



IASSIS# 


FROM 

C0N# 


PIN# 


— *T^ 

BL0CK# 


TO 

C0I# 


1 

R0W# 


WIRE SIZE 


2 


SI 


5 


100 


A 


1 


#26KYNAR 


5 


SI 


5 


100 


A 


1* 


#26KYNAR 


10 


SI 


5 


100 


A 


7 


#26KYNAP. 


7 


s6 


5 


100 


A 


10 


#26K3CNAR 


8 


SU 


5 


100 


A 


13 


#26KYMK 


9 


S2 


5 


100 


A 


16 


#26KYMAR 


9 


S10 


5 


100 


A 


19 


#26K(NAR 


10 


S8 


5 


100 


A 


22 


#26kynar 


11 


S6 


5 


100 


A 


25 


#26KYMH 


12 


Sk 


5 


100 


A 


28 


#26KYNAB 


2 


S2 


5 


100 


.:' B 


1 


#26KYKAR 


6 


31 


5 


100 


B 


1+ 


#26KYflAR 


7 


S7 


5 


100 


B 


10 


#2bKYNAR 


8 


S5 


5 


100 


B 


13 


#26KYNAR 


9 


S3 


5 


100 


B 


16 


#26KYNAR 


9 


Sll 


5 


100 


B 


19 


#26KYNAR 


9 


Sll 


5 


100 


B 


20 


#26KYNAR 


10 


39 


5 


100 


B 


22 


#26KXNAR 


11 


S7 


5 


100 


B 


25 


#26KYNAK 


12 


S5 


5 


100 


B 


28 


#26KYNAR 


2 


S3 


5 


100 


C 


1 


#26KYNAR 


6 


S2 


5 


100 


C 


k 


#26KYHAR 


7 


S8 


5 


100 


C 


10 


#26KYNAR 


8 


35 


5 


100 


C 


13 


#26KXNAH 


9 


Sh 


5 


100 


C 


16 


#26KYNAR 


10 


S2 


5 


100 


C 


19 


#26KYNAR 


10 


S10 


5 


100 


C 


22 


#26KXNAR 


n 


S8 


5 


100 


C 


25 


#26KYNAR 


22 


s6 


5 


100 


C 


28 


#26KYNAR 


2 


Si+ 


5 


100 


D 


1 


#26KYNAR 


6 


S3 


5 


100 


D 


k 


#26KYNAR 


7 


39 


5 


100 


D 


10 


#26KYNAR 


8 


S7 


5 


100 


D 


13 


#26KYNAR 


9 


S5 


5 


100 


D 


16 


#26KYNAR 


10 


S3 


5 


100 


D 


19 


#26KYNAR 


10 


Sll 


5 


100 


D 


22 


#26KYNAR 


10 


Sll 


1+ 


100 


D 


23 


#26KYNAK 


u 


S9 


5 


100 


D 


25 


#26KYNAR 


12 


S7 


5 


100 


D 


28 


#26KYNAR 


2 


S5 


5 


100 


E 


1 


#26KYNAR 


7 


S2 


5 


100 


£ 


1+ 


#26KYHAR 


7 


S10 


5 


100 


E 


10 


#26KYNAB 


8 


S8 


5 


100 


E 


13 


#26KYNAR 


9 


So 


5 


100 


E 


16 


#26KYNAR 


10 


SU 


5 


100 


E 


19 


#26KYNAR 


11 


S2 


5 


100 


E 


22 


#26KYNAR 


11 


S10 


5 


100 


E 


25 


#26KYNAR 


12 


S8 


5 


100 


E 


28 


#26KYNAR 


2 


36 


5 


100 


F 


1 


#26KyiIAR 


7 


S3 


5 


100 


F 


l» 


#26KYNAR 


7 


Sll 


5 


100 


F 


10 


#26KYNAR 



Figure 4-9. Sample Page 3-24 Internal Wire List 

■ 

4-15/4-16 



SECTION 5 
SIGNAL DESCRIPTION AND SIGNAL FLOW 

5. 1 Signal Description 

There are five basic signals which flow between central and the field to convey the 
information necessary for the proper functioning of the UTCS/BPS System. These are: 

(1) A-Phase Green 

(2) Hold 

(3) Advance -?" 

(4) Vehicle Detectors 

(5) Bus Detectors 

In addition, the districts master clock is brought in by a Radio Link. 

5. 1. 1 A-Phase Green 

When a particular controller falls into a particular green interval defined as A- 
Phase Green, it sends out a 115 vac signal which energizes a relay in the Controller Adap- 
ter causing a +12 vdc signal to be applied to the Mark key input of a 2F transmitter. The 
transmitter's output signal which was at f is shifted up in frequency 60 Hz to the t 
frequency and sent via telephone wire, to Central, where the signal is amplified and the 
signal shift subsequently sensed in the appropriate receiver. The receiver output level 
changes from +6. 5 vdc to vdc. This signal is then coupled to both the Map Display and 
the CIU. See Figure 5-1. 

5. 1. 2 Hold and Advance 



The Hold command is the means by which the controller is placed under Computer 
control. The Hold command removes the controller from local dial control to enable the 
presence of an Advance pulse from the Computer to step the Controller. See Figure 5-2. 

The Hold command is a long-term signal, appearing as a +6. 5 vdc level from the 
CIU. This signal is used to key the oscillator of a 3F transmitter on and to transmit over 
the telephone line the f frequency. Refer to Section 4. 1. 2. The 3F receiver in the 
field receives the f frequency and its carrier detector output changes from vdc to 
+12 vdc which energizes a relay in the Controller Adaptor removing the Controller from 
local dial control 

The Advance command is 0.5 seconds in duration and is sent out whenever the 
Controller must be stepped once. The +6. 5 vdc Advance signal from the CIU is sent to the 



5-1 



Q 

il. 




o a, 

I- Q 



i 



X 



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5-3 



Mark key on the same 3F transmitter that the Hold command has keyed the Oscillator on. 
This causes the transmitter signal to shift 30 Hz higher in frequency and transmit over the 
telephone lines the f frequency. The 3F receiver in the field receives the f^ frequency 
and its Mark output changes from + 12 vdc to vdc while still holding the carrier detector 
output at +12 vdc. See Figure 4-2. 

The change in Mark output keys a relay in the controller adaptor which allows a 
115 vac signal to step the controller cam shaft once. See Figure 5-2. 

5.1.3 Vehicle Detector 

The signal flow diagram is shown in Figure 5-3. When a vehicle passes over the 

loop detector in the roadway, the Vehicle Detector Electronics unit senses this and 

deenergizes its output relay. This puts + 12 vdc on the Mark key input of a 2F transmitter. 

The transmitters output signal which was at f is shifted up in frequency 60 Hz to the f 

_s jxL 

frequency and is sent via telephone line to central. The signal shift is then amplified and 
subsequently sensed in the appropriate receiver. The receiver output level changes then 
from +6. 5 vdc to vdc. This signal is then sent to the CIU. 

5.1.4. Bus Detector 

The signal flow diagram is shown in Figure 5-4. The bus detector inputs inform 
the Computer that the bus has passed over the bus road loop antenna and is either going to 
stop at the bus stop or pass through it. The bus itself carries a Transmitter and a Control 
Device. Refer to Section 10. When the bus driver decides he wants to stop or pass through 
a particular bus stop, he sets the control unit in the appropriate position. When it is set in 
the stop position, the transmitter on the bus puts out a cw signal of 168KHz. When it is 
set in the through position, the transmitter puts out a cw signal of 182KHz. 

These signals are picked up by the bus road loop antenna as the bus passes over it 
and are coupled into a Bus Receiver in the Field Cabinet. The receiver detects the input 
and depending on the frequency of the input puts out a +9. vdj, 50 milliseconds pulse at 
the Stop or Through output. This signal is then coupled to the keying inputs of the 3F 
transmitter. 

The 3F transmitter has the Oscillator on terminal tied permanently to +12 vdc 
so that it is transmitting over the telephone the f frequency. The Stop output of the 
Bus Receiver is tied to the Mark key of the 3F transmitter and the Through output is tied 
to the Space key. 



5-4 






I IU 3 




W3/ 


Q. 




I 2 




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CC 


tc 




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5-5 



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5-6 



The 3F transmitter then functions as described in Section 4. 1. 2; that is, with 
no bus signal present i^ is transmitted; with the Stop signal present f m is transmitted; 
and with the Through signal present f^is transmitted. The signal is sent via the telephone 
line to Central where it is amplified and subsequently sensed in the appropriate receiver. 
The receiver Mark output level changes from +6.5 vdc to vdc when f m or Stop is 
received; the Space output changes from +6.5 vdc to vdc when £ or Through is received; 
and the Carrier detect output will stay at +6.5 vdc for f^, fg or f . However, if the 3F 
transmitter fails so that no signal is received at the receiver, the Carrier detect level 
changes from +6.5 vdc to vdc informing the Computgr of a communications failure. This 
signal is referred to as bus error. 

5.1.5 Radio Link 

The synchronization and sign control signals are brought into Central as coded 
audio tones. This signal is amplified and distributed to sign decoders whose output is 
115 vac. 

These signals are then processed in the Radio Link Interface Unit so that the 
presence of a synchronization signal is vdc and the absence is +6.5 vdc These signals 
are sent to the CIU. 

The one-way sign control signals are vdc for no sign and +6. 5 vdc for the 
activation of the sign. These signals are sent to both the Map Display Unit and the CIU . 
See Figure 5-5. 

5.2 System Signal Flow 

An overall signal flow diagram showing the interface between all the UTCS/BPS 
equipments, both in Central and in the Field, is shown in Figure 5-6. Each of the signal 
group numbers in Figure 5-6 is related to the corresponding number in Table 5-1. Using 
Figure 5-6 and Table 5-1 the operator/technician can determine the correct signal level 
related to a signal state present at any equipment within the system. This information 
provides an overall view. 



5-7 




o 

ft! 






«9 

g 



;ii 




BUS 
DETECTOR 
RECEIVER 




-&* 



TELEPHONE LINES 

~rr 



STREET 



STREET 

COMMUNICATIONS 

TRANSMITTERS h*" 

AND 

RECEIVERS 



USHSL 

ENCIRCLED NUMBER DENOTES 

SIGNAL GROUP 

t.g.(i)« SIGNAL GROUP #6 





VEHICLE 
DETECTOR- 
ELECTRONICS 



Figure 5-6. UTCS/BPS Signal Flow Diagram 



5-9 



TABLE 5-1. SYSTEM SIGNAL LEVELS 







Voltage/Signal for 


Voltage/Signal for 


Signal Group 


Function 


True Function 


False Function 


1. 


All CIU to Map Display 

signals 


+6.5 ± 3. Ode 


+ 0.5 ±0.5 dc 


2. 


A-Phase Green and 
minor returns 


+0.5 ± 0.5 dc 


+ 6.5 ± 3.0 dc 


3. 


Hold 


+ 6.5 ± 3.0 dc 


+0.5 ± 0.5 dc 




Advance 


+ 6.5 ±3.0 dc«: 


+ 0.5 ± 0.5 dc 


4. 


A-Phase Green and 

minor returns 


+0,5 ± 0.5 dc 


+ 6.5 ± 3.0 dc 




Vehicle Detect 


0. 5 ± 0. 5 dc 


+ 6.5 ± 3.0 dc 




Bus Stop 


0.5 ± 0.5 dc 


+ 6.5 ± 3.0 dc 




Bus Through 


0.5 ± 0.5 dc 


+ 6.5 ± 3.0 dc 




Bus Error 


0. 5 ± 0. 5 dc 


+ 6.5 ± 3.0 dc 


5. 


Hold and Advance Release 


(Switch Open) 


(Switch Closure) 


6. 


All CIU to Control Panel 
signals 


+6.5± 3.0 dc 


+ 0.5 ±0.5 dc 


7. 


All Control Panel to 
CIU signals 


+0.5 ± 0. 5 dc 


+ 6.5 ± 3.0 dc 


8. 


Test 1 


+6.5 ± 3.0 dc 


+ 0.5 ±0.5 dc 




Test 2 


+6.5 ± 3.0 dc 


+ 0.5 ± 0.5 dc 




Flash 


(Switch Closure) 


(Switch Open) 




Display On-Off 


+24.0 ± 4.0 dc 


+ 0.5 ± 0.5 dc 




Fault Computer in 


+6.5 ± 3. Ode 


+0.5 ± 0,5 dc 




Stand-by 






9. 


Radio Sync Signals 


+ 6.5 ± S.Odc 





10. 


One -Way Arrows 


+6.5 ± 3.0 dc 





11. 


A-Phase Green 




£1 


Audio 




Vehicle Detect 


levels 




Bus Stop 


adjusted 




Bus Through 


in ac~ 




Bus Error 





]£ \cord- 










ance 










with 


12. 


Hold 


t 


No carrier 


Section 




Advance 


f 

~st J 


9 


13. 


Hold 


+12. 0± 2. Ode 


+0.5 ±0.5dc 




Advance 


+0.5 ±0.5dc 


+12.0 ± 0.2 dc 


14. 


A-Phase Green or 
minor returns 


+12.0 ± 2.0 dc 


+ 0.5 ± 0.5 dc 


15. 


Advance 


I15v(rms)± 15 v 








5-10 



Table 5-1. System Signal Levels (Continued) 



Signal Group 


Function 


Voltage/Signal for 
True Function 


Voltage/Signal for 
False Function 


16. 


A-Phase green or 
minor returns 


115v(rms)±15 v 





17. 


Vehicle Detector 
Electronics to 2F 
Transmitter 


+9.0 ± 4.0 dc 


+0.5 ± 0.5 dc 


18. 


Bus Stop to 3F 
Transmitter 


+9.0 ± 4.0 dc 


+0.5 ±0.5 dc 




Bus Through to 3F 
Transmitter 


+9.0 4 4.0 dc 


+0.5 ± 0.5 dc 



5-11/5-12 



SECTION 8 
MALFUNCTION INDICATION 

6.1 General 

The UTCS/BPS System provides for the continuous detection and recording of 
system malfunctions. All repair maintenance action will be initiated by the various mal- 
function indicators. 

6.2 Malfunction Indicators ^ 

The malfunction indicators and recordings of failures are described in 
Sections 6.2.1, 6.2.2 and 6.2.3. 

6.2.1 Control Panel Malfunction Indicator s 

The first indication of a system malfunction is activation of the Audible Alarm 
and simultaneous illumination of a malfunction indicator. There are seven malfunction 
indicators, (Figure 6-1) each having a red background, which are located in the upper left 
hand section of the Control Panel. These indicators are as follows: 

(1) CPU No. 1 

(2) CPU No. 2 

(3) Traffic System Controller 

(4) Traffic System Detector 

(5) Traffic System Communication 

(6) BPS Detector 

(7) BPS Communication 

6.2.2 CRT Displ ay 

The CRT is capable of presenting the operator/technician with detailed informa- 
tion on a malfunction indicated by the Control Panel via the Failure Status page (Refer to 
Operator's Manual Figure C-l CRT Failure Status Page). The Failure Status page is 
utilized to obtain the "computer number" of an indicated malfunction. The computer 
number can then be utilized in conjunction with the Cross Reference Directory in the fault 
isolation procedures. 



J-I 



6.2.3 Line Printer 

The Line Printer furnishes a hard copy of the information displayed on the CRT 
should the operator /technician require such a copy. Unlike the CRT display whose data, 
of necessity, is truncated, the Line Printer records all malfunctions for a permanent 
record. 

The Malfunction Indications, Table 6-1, lists the Control Panel malfunction indicator, 
the malfunction, the applicable CRT page and Map Display mode (Refer to Operator's 
Manual Table 3-1), and the location of the related malfunction isolation procedure. 




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6-3 



TABLE 6-1. MALFUNCTION INDICATIONS 



Control Panel 






Map Display 




Indicator 


Malfunction 


CRT Page* 


Mode 


Procedure 


1. CPU No. 1 


UTCS Computer 


N.A. 


Map indicates 


Reinitiate Start -Up 




is not functioning 




computer in 


Procedure. Refer 




normally 




Standby 


to Operator's 
Manual, paragraph 
4.1.2 CPUStart-Up 


2. CPU No. 2 


BPS Computer 
is not functioning 
normally 


N.A. 


N.A. 


Reinitiate Start -Up 
Procedure. Refer 
to Operator's 
Manual paragraph 
4.1.2 CPU Start-Up 


3. Traffic 


Indicates a mal- 


Failure 


Controllers 


Traffic 


System 


function in the 


Status 


Failed 


Systems Controller. 


Controller 


Controller Loop. 


(Controller 


(Location) 


Refer to Section 




Possibilities are: 


No.) 




7.8 




Controller failure, 










Controller Adapter 










failure, Communi- 










cations failure, 










CIU failure, Inter- 










connect failure 








4. Traffic 


Indicates Detector 


Failure 


Surveillance 


Traffic Systems 


System 


Failure 


Status 


Equipment 


Detector. Refer 


Detector 




(Detector 
No.) 


Failed (Link 
Location) 


to Section 7.9. 


5. Traffic 


Indicates Detector 


Failure 


Surveillance 


Traffic Systems 


System 


Communications 


Status 


Equipment. 


Communications . 


Communi- 


Failure 


(Communi- 


Failed (Link 


Refer to Section 


cations 




cations 
No.) 


Location) 


7.10. 


6. BPS 


Indicates Bus 


Failure 


BPS Surveil- 


BPS Detector. 


Detector 


Detector 


Status 


lance Equip- 


Refer to Section 




Failure 


(BPS 

Detector 

No.) 


ment Failed 
(Zone Loca- 
tion) 


7.11 


7. BPS 


Indicates Bus 


Failure 


BPS Surveil- 


BPS Communi- 


Communica- 


Detector 


Status 


lance Equip- 


tions. Refer to 


cation 


C ommunications 


(BPS Com- 


ment Failed 


Section 7.12 




Failure 


munica- 
tions No.) 


(Zone Loca- 
tion) 





♦NOTE: Refer to Operator's Manual Figure C-l for details of Failure Status page of 
CRT display. 



6-4 



SECTION 7 
CENTRAL MALFUNCTION ISOLATION 

7. 1 General 

The UTCS/BPS operational program continually monitors prime equipment in 
order to detect and record system malfunctions. After the operator/technician has 
familiarized himself with the Operator's Manual Section 2.7, he proceeds to determine 
the type of malfunction related to a particular Control Panel indication. Section 6 of 
this manual (Malfunction Indication) includes detailed information on system malfunction 
indicators and their related faults. Section 6 is intended as a guide towards locating 
the correct paragraph of this section. The operator/technician can then utilize the 
appropriate troubleshooting procedure. 

In most cases, the replacement of a particular module, PC board, or lamp will 
result in an immediate return to normal system status. A log should be kept, recording 
all failures, their symptoms, causes and required corrective action. 

7.2 Techniques 

In order to isolate malfunctions properly the following ordered sequence should be 
followed. 

(a) Telephone line failures 

(b) Central Equipment failures 

(c) Field Equipment failures 

No technicians should be dispatched to the field until the telephone lines and Central 
Equipment have been found not to be at fault. 

7.3 Telephone Lines 

In any case of malfunction, it should be at once determined whether the fault is 
the result of the UTCS/BPS equipment or the leased telephone lines. There are twenty- 
four telephone pairs that carry information to the Field Equipment and fifty-five telephone 
pairs thai bring information from the Field Equipment to Central. 
7.3.1 Outgoing Lines 

The control information, Hold (HOL) and Advance (ADV), are transmitted on the 
outgoing telephone pairs. In the event of several simultaneous Controller malfunctions the 
Cross Reference Directory should be checked to see if they are associated with the same 
telephone pair. If they are, the telephone line is malfunctioning and the telephone company 
should be notified immediately. 



7.3.2 Incoming Lines 

All vehicle detectors* bus detectors and communications failures should he 
checked in the Cross Reference Directory to see if they are associated with the same In- 
coming telephone pair. If so, it can be either the telephone pair or the line amplifier for 
that telephone pair in Central. 

To check the amplifier find its location in the Central Communications Cabinets 
by looking up the telephone line in Appendix C. Replace the amplifier with a spare unit. 
If the failures are still present, then the telephone line is malfunctioning and the tele- 
phone company should be notified immediately. 

7.4 Computer 

figure 7-1 and figure 7-2 are fault diagrams for CPU No. 1 and CPU No. 2 failures. 

Any\ system malfunction which is traceable to the Sigma 5 computer or any of its 
peripherals must be referred to the manufacturer's (Xerox Corp.) designated servicemen, 
under the terms of the maintenance arrangement. The sole exception to this rule is when it is 
suspected that the Computer Interface Unit (CIU), has failed. Then the procedure out- 
lined in Section 7, 5 should be followed. 

Any malfunction in the CRTs should be referred to the manufacturer's (Hazeltine) 
designated servicemen under the terms of the maintenance arrangement. 

7.5 Computer Interface Unit (CIU) 

When the CIU is suspected to be the source of trouble, the maintenance should 
be limited to the replacement of input and output cards . This level of troubleshooting 
should normally be done when the system is off-line to prevent undesired perturbations 
to systems operation. 

Figure 5-6 shows the input and output signal flow to the CIU and Table 5-1 lists 
the signal levels. If the proper signal level is not present, the output and/or input card 
should be changed. 

Appendix C lists the data bit number and the associated card location and pin 
connection for all CIU inputs and outputs. 

If card replacement fails to solve the problem, the manufacturer's designated 
service man should be called. 

• CAUTION I 



9»»»«» »«••*••••••• 



A CIU INPUT CONNECTOR OR CARD SHOULD BE 
REMOVED ONLY WHEN OFF-LINE, 

7-2 




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7.6 Map Display 

When a malfunction occurs on the Map Display, check to see if the Map Display 
and the Map Display Electronic Unit are receiving the correct signals in the following 
manner: 

(1) If the fault is the display of A-Phase Green or minor phase signals, check 
the signal levels present at the Connector block (Bl) in the Map Display 
Electronic Unit (Ref. SSMD Doc. 4-8-2000). 



(2) If the fault is in other inputs of the Electronic Unit, check the source (Control 
Panel, CIU, or Radio Link) for proper signal levels. This can be done at the 
following: 

• Control Panel Terminal Board 

(Refer to Maintenance Procedures EPC-11088) 

» CIU Output Circuit Card Connectors 
(Refer to SSMD Doc. 4-8-2000) 

• Radio Link Output Connector 
(Refer to SSMD Doc. 4-8-2000). 

If the fault is determined to be within the Map Display or Map Display Electronic 
Unit, the Map test fixture (Appendix B) enables troubleshooting to the module level. 

7.7 Control Panel 



A suspected Control Panel failure can be readily verified. As shown in Figure 
5-6 the Control Panel interfaces with the Map Display Electronic Unit, the CIU, and the 
Communications Cabinets. The level of each of these signals can be measured at a 
terminal block located at the rear of the Control Panel. The location of each signal on 
the terminal block is specified in the Control Panel Maintenance Procedure EPC-11088. 



7-5 



7.7. 1 Control Panel Switch Tests - Prior to investigating a particular signal level a 
check of the Control Panel switch operation should be accomplished by verifiying the in- 
tended switch action. Three types of switches are provided in the Control Panel switch 
assortment, and the action of these can be checked by depressing each switch or a 
sequence of switches. The three types of switch action are defined as follows: 

• Alternate Action Switch - Depressing the front lens transfers the switch 
contacts and they remain transferred even after the actuation force is 
removed and the front lens has returned to its normal position. Depressing 
the front lens again returns the switch contacts to their normal position. 

• Momentary Action - Depressing the front lens transfers the switch contacts 
until the actuating force is removed at which time the contacts return to 
their normal position and the front lens returns to its normal position. 

• Momentary Action with Holding Coil - The numerous electrical interlock, 
lock-in and lock-out circuits provided with the system Control Panel are made 
possible with the inclusion of a magnetic holding coil to the momentary action 
switch. Once the holding coil is energized it will hold contacts in their 
actuated position. Removing power from the holding coil will cause the 
contacts to return to their normal position. 

Once the switch operation has been verified Control Panel fault isolation can 
proceed by verification of the signal levels. 

7.7.2 Control Panel to CIU Signals - Output signals from the Control Panel to the 
CIU are initiated upon operator actuation of Control Panel switches. A switch 
actuation provides a ground (0 volts) signal to the CIU. When a valid request is entered 
from the Control Panel and the system does not respond, the signal level should be 
verified at the Control Panel terminal block. If the signal level is correct, the fault is 
located in the CIU and the input card should be changed. If the signal level is not correct, 
then the Control Panel Maintenance Procedure EPC-11088 should be utilized to trouble- 
shoot the Control Panel. 

7.7.3 Control Panel From CIU - Input signals to the Control Panel are initiated from 
the CIU. These signals are either long term discretes, for operating the malfunction 
indicators and alarm, or pulsed inputs for operating the ENTER/READY, ERROR, and 
WAIT/ERROR indicators. The location and level of each input signal is specified in the 



Control Panel Maintenance Manual. If the signal levels are correct, then the fault is 
located within the Control Panel and the Control Panel Maintenance Procedure EPC-11088 
should be utilized to trouble -shoot the Control Panel. 

If the signal levels are not correct, the CIU output card should be changed. 

7.7.4 Control Panel to Map Display - The Control Panel provides the following discrete 
signals to the Map Display Electronic Unit: 

(1) DISPLAY ON/OFF 

(2) DISPLAY TEST NO. 1 

(3) DISPLAY TEST NO. 2 

(4) COMPUTER IN STANDBY 

The level of each of these signals is specified in Treble 5-1. If the signal level is 
correct, then follow the procedure of Section 7.6. An incorrect signal level Isolates the 
fault to the Control Panel and the Control Panel Maintenance Procedure EPC-11088 
should be utilized to troubleshoot the Control PaneL- 

7.7.5 Control Panel to Communications Cabinets 

This signal terminates the transmission of output signals from the coin mimi cations 
by opening a set of relays in the Communication Cabinets through which all output telephone 
lines pass. The output from the Control Panel is normally a switch closure which opens 
when a manual release has been initiated or the CPU-1 Malfunction Indicator comes on. 
When the switch opens it breaks the ground return of the relays and they drop out. 
Operation of this function is checked with a voltmeter across the terminals oi the only two 
terminal block located at the rear of the Control Panel. When the manual release is initia- 
ted, the voltage will be 10 to 15 vdc. Under normal operation it will be vdc. 

7.8 Traffic System Controller 

Thio fault indicator is a result of a system malfunction in the controller loop. 
The possible trouble areas are as follows: 

(a) A-Phase Green failure 

(b) Hold failure 

(c) Advance failure 



7-7 



Figure 7-3 is a fault diagram for the traffic systems controller. 

The operator should determine, as described in the Operator's Manual which 
controller is involved via the Failure Status page on the CRT and the location of the 
Controller Lamp Module on the Map Display by placing the Map in the Controller 
Status mode. The operator should then place the Map Display in the A-Phase Green 
mode and see if the affected traffic signal lamps are operating. If the red or the green 
lamp is illuminated constantly, the failure is in the A-Phase Green signal loop. The 
operator should then refer to the Cross Reference Directory, using the failed controller 
number from the CRT Failure Status page, for the location gf the A-Phase Green 
receiver in Central. Replace the 2F receiver module with one of the same frequency. 
If the Map Display lamp module operates correctly, the failure has been repaired and 
the Controller can be brought back on line. If the red or green lamp is still illuminated 
continuously, the failure is in the Field Equipment. 

Perform the communications link test of Section 7.8. 1 and note the results 
to aid in field maintenance. 



Fault 
Condition 


Map lamp 
(A-Phase Green mode) 


Communications 
line test 


Fault in 


1 


Red or green lamp on 


Positive 


Controller or Controller 




continuously 




Adapter 


2 


Red lamp on continu- 


Negative 


Controller Adapter, A-Phase 




ously 


• 


Green transmitter, Commu- 



nications Power Supply 

Refer to Section 8 for field malfunction isolation procedures. 

If the Map Display lamp is operating correctly, bring the Controller back on line. 
If the Computer does not pick up the Controller, the A-Phase Green signal is not being 
received at the CIU. 



7-8 



COMMUNICATIONS 

MALFUNCTION 

CENTRAL 

REF: PARA. 7.8 



FIELD 
MALFUNCTION 

REF: PARA. 7.8 



COMMUNICATIONS 

MALFUNCTION 

CENTRAL 

REF: PARA. 7.8 



CIU 
MALFUNCTION 

REF: PARA. 7.5 



FIELD 
MALFUNCTION 

REF: PARA. 7.8 



TELEPHONE 
OUTPUT LINE 
MALFUNCTION 

REF: PARA. 7.3.1 



© 



© 



(D 



© 



® 



CONTROLLER 
MALFUNCTION 
FAULT COND. 1 

REF: PARA. 8.2.1 



CONTROLLER 

ADAPTOR 

MALFUNCTION 

FAULT CONDITION 

1 OR 2 

REF: PARA. 8.2.1 



FIELD COMM. 
MALFUNCTION 
FAULT COND. 2 
REF: PARA. 8.2.1 



CONTROLLER 

ADAPTOR 

MALFUNCTION 

FAULT COND. 

3 OR 4 

REF: PARA. 8.2.1 



HOLD AND ADVANCE 
RECEIVER 
MALFUNCTION 
FAULT COND. 4 
REF: PARA. 8.2.1 



INPUT 

AMPLIFIER 

MALFUNCTION 

REF: PARA. 7.3.2 



TELEPHONE 
INPUT LINE 
MALFUNCTION 

REF: PARA. 7.3.2 



Figure 7-3. Traffic System Controller 
Fault Diagram 



7-9/7-10 



CRT FAILURE 
STATUS PAGE 
SHOWS NO 
CONTROLLER 
FAILURE 



CONTROL PANEL 
MALFUNCTION 



REF: PARA. 7.7 



COMMUNICATIONS 

MALFUNCTION 

CENTRAL 



© 



CONTROLLER 
MALFUNCTION 
FAULT COND. 1 

REF: PARA. 8.2.1 



MAP DISPLAY 
A-PHASE GREEN 
NOT OPERATING 



© 



REF: PARA. 7.8 



FIELD 

MALFUNCTION 



REF: PARA. 7.8 



CONTROLLER 

ADAPTOR 

MALFUNCTION 

FAULT CONDITION 

1 OR 2 

REF: PARA. 8.2.1 



CRT FAILURE 
STATUS PAGE 
SHOWS SINGLE 
CONTROLLER 
FAILURE 



© 



COMMUNICATIONS 

MALFUNCTION 

CENTRAL 

REF: PARA. 7.8 



® 



FIELD COMM. 
MALFUNCTION 
FAULT COND. 2 
REF: PARA. 8.2.1 



TRAFFIC SYSTEM 
CONTROLLER 
FAULT 
INDICATOR 



MAP DISPLAY 
APHASE GREEN 
OPERATING 



CIU 
MALFUNCTION 



REF: PARA. 7.6 



FIELD 
MALFUNCTION 



®. 



CONTROLLER 

ADAPTOR 

MALFUNCTION 

FAULT COND. 

3 OR 4 

REF: PARA. 8.2.1 



DESIGNATES ORDER 
OF CHECK 



CRT FAILURE 

STATUS PAGE 

SHOWS TELEPHONE 

UNE GROUP OF 

CONTROLLERS 

FAILED 

REF: CROSS REF. DIR. 



CRT FAILURE 
STATUS PAGE 
SHOWS MULTIPLES 
OF EIGHT 
CONTROLLERS 
FAILED 
8,18, 24 ETC. 



CROSS REFERENCE 
DIRECTORY 
INDICATES HOLD 
OR ADVANCE 
TELEPHONE 
LINE GROUP 



CROSS REFERENCE 

DIRECTORY 

INDICATES 

A-PHASE GREEN 

TELEPHONE 

' IM GROUP 



CIU 
MALFUNCTION 



REF: PARA. 7.6 



© 



REF: PARA. 7.8 



TELEPHONE 
OUTPUT LINE 
MALFUNCTION 

REF: PARA. 7.3.1 



INPUT 

AMPLIFIER 

MALFUNCTION 

REF: PARA. 7.3.2 



TELEPHONE 
INPUT LINE 
MALFUNCTION 

REF: PARA. 7.3.2 



©. 



HOLD AND ADVANCE 
RECEIVER 
MALFUNCTION 
FAULT COND. 4 
REF: PARA. 8.2.1 



Figure 7-3. Traffic System Controller 
Fault Diagram 



7-9/7-10 



An off-line replacement of the associated CIU input card should be accom- 
plished. Refer to the Central Site Signal Interface Table (SSMD Document No. 4-8-2GQ0) 
for the connector and pin connection on the CIU input card. A sample of typical A-Phase 
Green signal tracing in Centralis shown in Figure 7-4. 



J CAUTJON • 

A CIU INPUT CONNECTOR OR CARD SHOULD BE 
REMOVED ONLY WHEN OFF -LtfTE. 

If the Map Display lamp module is operating correctly and the Computer pickis 
up the failed Controller, then it is receiving the A-Phase Green signal and the fault id 
found in the Hold and Advance signal loop. A sample of a typical Hold and Advance 
signal tracing in Central is shown in Figure 7-5. Monitor the Hold and Advance signals 
from the CIU at the Communications Cabinets. Refer to the Central Site Signal Interface 
Table (SSMD Document No. 4-8-2000) for the Communication Cabinet block and pin data. 

Note 

The computer will not output the Hold and Ad- 
vance signals after a Controller has failed. The 
ControUer must be acknowledged as repaired 
and then brought back on-line. If an A-Phase 
Green signal is present, the Computer will 
attempt to pick up the Controller and will out- 
put the Hold and Advance signals until it fails 
again. 

If either the Hold or the Advance signals are 
not pres'm*, then the CIU output card is most 
likely at fault and an off-line replacement 
of the CIU output card should be accomplished. 



I CAUTION j 



A CIU OUTPUT CONNECTOR OR CARD SHOULD 
BE REMOVED ONLY WHEN OFF-LINE. 

7-11 



PCS A9 

LINE-AMP 
NO.I 




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note: 



U050I 



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(x) DENOTES RN NUftfBER ON SPECIFIED CONNECTOR 



Figure 1-4. A-Phase Green Signal Tracing, Central (Sample) 



7-12 




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If the Hold and Advance signals are being outputed by the CIU, change the Hold 
and Advance 3F transmitter. Refer to the Cross Reference Directory for the location 
of the transmitter module in Central. Replace the transmitter with one of the same 
frequency. Adjust the transmitter output level per Section 9. Acknowledge that the 
Controller has been repaired and bring it back on-line. If the Controller does not fail 
again, the failure was in the Central 3F transmitter. 

If the Controller fails again, the fault is found in the Field Equipment. 

Perform the communications link test of Section 7.8. 1 and note the results to 
aid in field maintenance. - : ' 



Fault 
Condition 


Map lamp 
(A-Phase Green mode) 


Com munications 
link test 


Fault in 


3 
4 


Operating correctly 
Operating correctly 


Positive 
Negative 


Controller Adapter 

Hold and Advance receiver 
or Controller Adapter 



Refer to Section 8 for Field Malfunction Isolation procedures. 

7.8.1 Communications Link Test 

When the communications link (Hold, Advance & A-Phase Green) for a particular 
Controller is under suspicion, perform the communication link test, utilizing the Card 
Extender described in Appendix B. 

Placing the switch to TEST puts +6.5 vdc into the Transmitter on and Space key 
inputs of the Hold and Advance 3F transmitter . ThiF sends a test signal out to the field 
which is returned as a pseudo A-Phase Green signal and tests out the entire communica- 
tions link. 

When the switch is placed in the TEST position the A-Phase Green receiver 
output should, go from +6.5 vdc to vdc. This is considered a positive result. If this 
does not happen, the results are considered negative. 



7-14 



7.9 Traffic System Detector 

This fault indicator is a result of a system malfunction in the vehicle detector 
loop. The possible trouble areas are as follows: 

(1) Vehicle detector failure 

(2) Communications failure 

(3) CIU failure 

Figure 7-6 is a fault diagram for traffic systems detector. 
The operator should determine, as described : in the Operator's Manual which 
Vehicle Detector is at fault and its location. 

After finding the location of the Central Communications receiver from the 
Cross Reference Directory, measure the signal of the Central Communications equipment 
for the presence of a vehicle (0. 5 ± 0. 5 vdc) or non -presence (6. 5 ± 3.0 vdc) as outputted 
by the appropriate 2F receiver. If there are vehicle pulses in Central, the signal is not 
being received at the CIU. 

An off-line replacement of the associated CIU input card should be accom- 
plished. Refer to the Central Site Signal Interface Table (SSMD Document No. 4-8-2000) 
for the connector and pin connection on the CIU input card. A sample of typical vehicle 
detector signal tracing in Central is shown in Figure 7-7. 



• •»»«»6</000»«»«»»O» 



A CIU INPUT CONNECTOR OR CARD SHOULD BE 
REMOVED ONLY WHEN OFF-LINE. 

If permanent presence is detected (0 vdc) replace the Central 2F receiver with 
one of the same frequency and repeat the test. If permanent presence is still detected, 
the fault is in the Field Equipment. 

Refer to Section 8 for Field Malfunction Isolation procedures 

7. 10 Traffic System Communication 

This fault indicator is a result of a system malfunction in the vehicle detector 
communications loop. The possible trouble areas are as follows: 

(1) Communications failure 

(2) CIU failure 



CRT FAILURE 
STATUS PAGE 
SHOWS NO 
DETECTOR 
FAILURE 



CONTROL PANEL 
MALFUNCTION 

REF: PARA. 7.7 



TRAFFIC SYSTEM 
DETECTOR 
FAULT 
INDICATOR 



© DESIGNATES ORDER 
OF CHECK 





© 




COMMUNICTIONS 
MALFUNCTION 

REF: PARA. 7.9 




<D 






-" 




CRT FAILURE 
STATUS PAGE 
SHOWS SINGLE 
DETECTOR 
FAILURE 






CIU 
MALFUNCTION 

REF: PARA. 7.5 




<D 




MN« 










VEHICLE 

DETECTOR 

MALFUNCTION 

REF: PARA. 8.Z2 









© 



CRT FAILURE 
STATUS PAGE 
SHOWS TELEPHONE 
L>NE GROUP OF 
DETECTORS FAILED 

REF: CROSS REF. DIR. 



INPUT 

AMPLIFIER 

MALFUNCTION 

REF: PARA. 7.3.2 



® 



TELEPHONE 
INPUT LINE 
MALFUNCTION 

REF: PARA. 7.3.2 



CRT FAILURE 

STATUS PAGE 

SHOWS MULTIPLES 

OF EIGHT DETECTORS 

FAILED 

8. 16. 24. ETC. 








CIU 
MALFUNCTION 

REF: PARA. 7.S 









Figure 7-6. Traffic System Detector Fault Diagram 



7-18 




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Figure 7-8 is a fault diagram for traffic systems Communications. 
The operator should determine, as described in the Operator's Manual, which 
Vehicle Detector communications receiver is at fault and its location. 

After finding the location of the Central Communications receiver, from the 
Cross Reference Directory, measure the signal of the Central Communications equipment 
for the presence of a vehicle (0. 5 ± 0. 5 vdc) or non-presence (6. 5 ± 3 vdc) as outputted 
by the appropriate 2F receiver. If there are vehicle pulses in Central, the signal is not 
being received at the CIU. 

An off-line replacement of the associated CIU input card should be accom- 
plished. Refer to the Central Site Signal Interface Table (SSMD Document No. 4-8-20O0) 
for the connector and pin connection on the CIU input card. A sample of typical vehicle 
detection signal tracing is shown in Figure 7-7. 

• CAUTION • 

A CIU INPUT CONNECTOR OR CARD SHOULD BE 
REMOVED ONLY WHEN OFF-LINE. 

If no presence is detected, then replace the Central 2F receiver with one of the 
same frequency and repeat the test. If no presence is still detected, the fault is in the 
Field Equipment. Refer to Section 8 for Field Malfunction Isolation procedures. 

7.11 BPS Detector 

This fault indicator is a result of a system malfunction in the bus detector loop. 
The possible trouble areas are as follows: 

(1) Bus detector failure 

(2) Communications failure 

(3) CIU failure 

Figure 7-9 is a fault diagram for BPS Detectors. 

The operator should determine, as described in the Operator's Manual, which 
Bus Detector is at fault and its location. 

After finding the location of the Central Communications receiver, from the 
Cross Reference Directory, measure the Through (BT) and Stop (BS) signals from the 
appropriate 3F receiver. A presence signal is a 50 millisecond pulse. For a presence 
the receiver output level drops from +6. 5 ± 3 vdc to 0. 5 ± 0. 5 vdc. The companion up 




TRAFFIC SYSTEM 
COMMUNICATIONS 
FAULT 
INDICATOR 



CRT FAILURE 
STATUS PAGE 
SHOWS MO 
COMMUNICATIONS 
FAILURE 



CONTROL PANEL 
MALFUNCTION 

REF: PARA. 7.7 



CRT FAILURE 
STATUS PAQE 
SHOWS SINGLE 
COMMUNICATIONS 
FAILURE 



COMMUNICATIONS 
MALFUNCTION 

REF: PARA. 7.10 



(g) DESIGNATES ORDER 
OF CHECK 




© 



CRT FAILURE 

STATUS PAGE 

SHOWS TELEPHONE 

LINE GROUP OF 

COMMUNICATIONS 

FAILED 

REF: CROSS REF. DIR. 



INPUT 

AMPLIFIER 

MALFUNCTION 

REF: PARA. 7.12 



<D 



TELEPHONE 
INPUT LINE 
MALFUNCTION 

REF: PARA. 7.J.2 



CRT FAILURE 
STATUS PAGE 
SHOWS MULTIPLES 
OF EIGHT 

COMMUNICATIONS 

FAILED 

8. 1®, 2S. ETC. 




Figure 7-8. Traffic Systems Communications Fault Diagram 



7-19 



BPS 

DETECTOR 
FAULT 
INDICATOR 



DESIGNATES ORDER 
OF CHECK 



CRT FAILURE 
STATUS PAGE 
SHOWS NO 
BPS DETECTOR 
FAILURE 



CRT FAILURE 
STATUS PAGE 
SHOWS SINGLE 
BPS DETECTOR 
FAILURE 



^ 



CRT FAILURE 
STATUS PAGE 
SHOWS TELEPHONE 
LINE GROUP BPS 
DETECTORS FAILED 

REF: CROSS REF. DIR. 




CRT FAILURE 
STATUS PAGE 
SHOWS MULTIPLES 
OF EIGHT BPS 
DETECTORS FAILED 
8, 16, 24, ETC. 



© 



<f> 



<D 







<D 



CONTROL PANEL 
MALFUNCTION 

REF: PARA. 7.7 



COMMUNICATIONS 
MALFUNCTION 

REF: PARA. 7.11 



CIU 
MALFUNCTION 

REF: PARA. 7.5 



BUS DETECTOR 
MALFUNCTION 

REF: PARA. 8.2.3 



INPUT 

AMPLIFIER 

MALFUNCTION 

REF: PARA. 7.3.2 



TELEPHONE 
INPUT LINE 
MALFUNCTION 

REF: PARA. 7.3.2 



CIU 
MALFUNCTION 



REF: PARA. 7.5 



Figure 7-9. BPS Detector Fault Diagram 



1-20 



stream or down stream receiver output is monitored to determine when a bus is in the 
zone. If the 3F receiver output is correct, the signal is not being received at the CIU. 

An off-line replacement of the associated CIU input card should be accom- 
plished. Refer to the Central Site Signal Interface Table (SSMD Document No. 4-8-2000) 
for the connector and pin connection on the CIU input card. A sample of typical bus 
detection signal tracing is shown in Figure 7-10. 



• caution • 

A CIU INPUT CONNECTOR OR CARD SHOULD BE 
REMOVED ONLY WHEN OFF-LINE. 

If the 3F receiver output is incorrect, replace the Central receiver and repeat 
the test. If the output is still incorrect, the fault is in the Field Equipment. Refer to 
Section 8 for Field Malfunction Isolation Procedures.. 

7.12 BPS Communication 

This fault indicator is a result of a system malfunction in the bus communications 
loop. The possible trouble areas are as follows: 

(1) Communications failure 

(2) CIU failure 

Figure 7-11 is a fault diae-^m for BPS Communications. 

The operator should determine, as described in the Operator's Manual, which 
bus communications channel i c ** *»»i* and its location. 

After finding the location of the Central Communications receiver, from the 
Cross Reference Directory, measure the Error (BE) signal at the communications 
connector block (Reference the Central Site Signal Interface Table (SSMD Document 
No. 4-8-2000). The presence of a Bus Error (BE) signal should be 0.5 ± 0.5 vdc. If 
there is not a Bus Error signal (that is, the communications loop is good), the signal 
is +6.5 ± 3.0 vdc. If the 3F reciever output is +6.5 ± 3.0 vdc, the signal is not being 
received at the CIU. 

An off-line replacement of the associated CIU input card should be accom- 
plished. Refer to the Central Site Signal Interface Table (SSMD Document No. 4-8-2000) 
for the connector and pin connection on the CIU input card. A sample of the typical bus 
detection signal tracing is shown in Figure 7-10. 



7-21 



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7-22 







CRT FAILURE 
STATUS PAGE 
SHOWS NO BPS 
COMMUNICATIONS 
FAILURE 








CONTROL MfttL 
MALFUNCTION* 

REF: PAftA. /./ 
























© 


BPS 

communications? 

MALFUNCTION 
REF: PAR*. 7At 










<f> 








CRT FAILURE 

STATUS PAGE 

SHOWS SINGLE 

BPS COMMUNICATIONS 

FAILURE 


















CIU 
MALFUNCTION 

REF: PARA; 7.5 




















BPS 

COMMUNICATIONS 
FAULT 
INDICATOR 












INPUT 

AMPLIFIER 

MALFUNCTION 

REF: PARA. 7.12 








0) 










© 






CRT FAILURE 

STATUS PAGE 

SHOWS TELEPHONE 

LINE GROUP OF BPS 

COMMUNICATIONS 

FAILED 

REF: CROSS REF. DIR. 
















TELEPHONE 
INPUT LINE 
MALFUNCTION 

REF: PARA. 7.12 
































CRT FAILURE 

STATUS PAGE 

SHOWS MULTIPLES 

OF EIGHT BPS 

COMMUNICATIONS 

FAILED 

8, 16, 24, ETC. 




CIU 
MALFUNCTION 

REF: PARA. 7.5 


<3) DESIGNATES ORDER 
OF CHECK 











Figure 7-11. BPS Communications Fault Diagram 



7-23 



• CAUTION ; 

A CIU INPUT CONNECTOR OR CARD SHOULD BE 
REMOVED ONLY WHEN OFF-LINE. 

If the 3F receiver output is 0. 5 ± 0. 5 vdc, replace the Central receiver and 
repeat the test. If the output is still the same, the fault is in the Field Equipment. 
Refer to Section 8 for Field Malfunction Isolation procedures. 

7. 13 Radio Link £ 

The Radio Link Interface Unit Schematic, Figures 7-12 and 7-13, show the con- 
nection of the 115 vac decoder outputs to the synchronization and sign relays. A 144 ohm 
resistor and the 1N754 zener diode provide +6.8 vdc from the 14 vdc source wired to the 
Radio Link Cabinet Terminal Board, Terminal Number 32. The presence of a synchroni- 
zation (SYN) or sign (SGN) control signal is 115 vac. This presence activates its associated 
relay which, in turn, outputs a presence. The SYN and SGN outputs are +6. 8 vdc for false 
SYN and SGN. For True SYN and True SGN (presence) the interface unit outputs a 0. 5 ± 
0. 5 vdc. 
7.13.1 Radio Link Malfunctions 

When under Computer control if the synchronization degrades more than five 
seconds in either direction, a flag is set in the computer for all controllers using that cycle 
length. The flag is interepted by the Computer which, in turn, alerts the operator by chang- 
ingfthe master Sync legend on the CRT Intersection Status Page from a Y (YES) to a N (NO) 
for any controller using that cycle length. 

The 1 15 vac synchronization or sign signal can be measured at the terminal board 
on the left wall of the Radio Link Cabinet No. 1 Radio Link Signal Flow Diagram Figure 5-5. 
If the signal is not present, the fault is in the Radio Link and the Districts Maintenance 
Section should be notified. If 115 vac signal is present on the terminal board, refer to the 
Central Site Signal Interface Table (SSMD Document No. 4-8-2000) for the plug and pin 
information at the CIU. 

If the signal is present at the CIU and the level is correct, then the CIU input 
card is suspect. 



♦ CAUTION J 



A CIU INPUT CONNECTOR OR CARD SHOULD BE 
REMOVED ONLY WHEN OFF-LINE. 

7-24 



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7-26 



If the synchronic ation signal is not present at the CIU input, then the fault is in 
the Radio Link Interface Jnit. The first step is to replace the faulty relay. Refer to 
the Radio Link Interface Jnit Synchronization Relay Connection Schematic Figure 7-12. 



7-27/7-28 



SECTION 8 
FIELD MALFUNCTION ISOLATION 



8.1 



General: 



Field Equipment malfunctions may occur while operating in either the stand by 
or computer mode of operation. Where Field Equipment is changed, it must be adjusted 
in accordance with the procedures of Section 9. 

Failure isolation is based on a single malfunction and assumes that 
interconnection cabling is correct. 



8.2 



Computer Mode Failures 



The procedures specified in the sections listed below of this manual should be 
carried out prior to going into the field for repairs since these procedures utilize 
Central Site equipment to provide fault isolation information for use in the field. 



Section 

7.8 

7.9 

7.10 

7.11 

7.12 

8.2.1 Traffic System Controller 



Title 

Traffic System Controller 

Traffic System Detector 

Traffic System Communications 

BPS Detector 

BPS Communications 



The fault conditions summarized in the following table and described in detail 
in Section 7. 8 require field maintenance and further fault isolation as specified below: 



Fault 
Condition 


Map Lamp (A-Phase 
Green Mode) 


Comm. Link 
Test 


Fault in 


1 


Red or Green on 


Positive 


Controller or Controller 




Continuously 




Adapter 


2 


Red on continuously 


Negative 


A-Phase Green Transmitter 
or Comm. Power Supply 


3 


Operating Correctly 


Positive 


Controller Adapter 


4 


Operating Correctly 


Negative 


Hold and Advance Receiver 








or Controller Adapter 



8-1 



• Fault Condition 1 

Check the Timing Tray for cam shaft rotation. 

(a) If rotating, 

(1) Check for 115 vac in A-Phase Green interval on Terminal Board 17 
terminals 7 and 1 

e If it is there, replace the Controller Adapter. 

• If it is not there, replace Timing Tray. 

(b) If not rotating, * : 

(1) Check Terminal Board 17, terminals 19 and 1 for 115 vac each 
time an advance key passes under the stack switch. 

• If the voltage is there, replace the Timing Tray. 

• If the voltage is not there, check the fuse in the Controller 
Adapter. Replace, if blown and repeat b-1. If test is still 
negative, replace Controller Adapter. 

• Fault Condition 2 

Determine if communications power supply module is operating. 

• Indicator lamp on 

• Switch on 

• +12 vdc between terminals 3 (+) and 1 on Terminal Board 17 

(1) If the power supply is not operating, replace the power supply. 

(2) If it is operating, replace the A -Phase Green transmitter. 
e Fault Condition 3 

Replace Controller Adapter. 

© Fault Condition 4 

Remove and replace the two modules of the Hold and Advance receiver. If still 
unable to pick up the Controller, replace the Controller Adapter. 



8-2 



8.2.2 Traffic System Detector and Traffic System Communications 

As a result of the tests performed at the Central Site in accordance with 
Section 7. 9 and 7. 10 of this manual, field fault isolation has been localized to the 
Vehicle Detector or associated communications transmitter. 

Field check of the loop and detector can be accomplished at the Field 
Cabinet by placing the panel meter switch of the Vehicle Detector Electronics Unit to 
OPERATE and observing this meter when a vehicle passes over the loop. A 
deflection of the meter would indicate it is tuned and operating. 

(a) If meter deflects - 

Check the +12 vdc keying voltage to the 2F transmitter on the Communications 
Back-Panel, (terminal board number and terminal number associated with the 
particular vehicle detector will be found in the cabinet documentation package) 

• If voltage is present, replace 2F transmitter. 

• If voltage is not present, replace Vehicle Detector. 

(b) If meter does not deflect - 

Retune Vehicle Detector in accordance with Section 9.3.4. 

• If unit can not be tuned, replace Vehicle Detector and repeat. If new 

unit can not be tuned, then the road loop has malfunctioned. Refer to Section 8.2.5. 

8.2.3 BPS Detector 

As a result of the tests performed in Section 7. 11 the field fault isolation is 
localized to the Bus detector receiver. If changing the receiver fails to correct the 
the problem, then the bus road loop antenna has malfunctioned (Refer to Section 8.2.5.) 

8.2.4 BPS Communications 

As a result of the tests performed in Section 7. 12 the field fault isolation is 
localized to the 3F transmitter and it should be replaced. 

8.2.5 Loop Failures 

If the vehicle loop or the bus road loop antenna are suspect, the maintenance 
man notifies the cognizant authority to check loop and lead in integrity. 

8.3 Standby Mode Failures 

When the equipment is in the Standby mode of operation, the fault must lie in 
the Controller or Controller Adapter since the Communications and Computer are not in 



8-3 



the loop. In the case of such a failure, a jumper is placed between terminals 7 and 8 of 
Terminal Board 5 or terminals 18 and 19 on Terminal Board 17. This removes the 
Controller Adapter from the loop. 

If the fault persists, consult the Manual for UTCS Controllers and Controller 
Adapters for trouble shooting information. 

If the fault is corrected, the Controller Adapter should be removed and re- 
placed. 



SECTION 9 
ALIGNMENT PROCEDURES 

9.1 General 

The following alignment procedures should be followed whenever any changes or 
replacements are made to UTCS/BPS equipment. 

9. 2 Central Equipment Alignment Procedure 

The only equipment requiring alignment in Central is the communications equip- 
ment. A communications equipment Card Extender should be used for all output and input 
signal level adjustments. The Card Extender initial setup is as follows: 

(a) Select correct keyway adapter board (in plastic box) . 

(b) Spring-out adapter board clips, insert adapter board in edge connector and 
reinsert clips. 

(c) Set Card Extender switches as follows: 

MARK-CTR-SPACE switch to CTR 

ON -TEST to ON 

DB - 10 DB to DB 

LINE -OFF -LOAD to LINE 

9. 2. 1 Transmitter Output Power 



All Central transmitters are 3F, RFL Model HB-24335-34. 

(a) Use Card Extender keyway 14 (Count from top). 

(b) After initial set-up of Card Extender, remove module under test, insert 
Card Extender into module slot, insert module under test into Card Extender. 

(c) Reset Card Extender switches as follows: 

ON -TEST to TEST 

LINE -OFF -LOAD to LOAD 

MARK-CTR-SPACE to MARK 



9-1 



(d) Plug in high impedance power meter (HP Model 400D or equivalent) to 
Jl or J2 of Card Extender (meter ungrounded). 

(e) Set each transmitter's output level to -7 dbm. 

Note 

1. Because the Card Extender board terminates 
each transmitter's output in 600 ohms when 
the LOAD-OFF-LINE switch is in LOAD, the 
HP 400D meter will read directly in DBM. 

2. Each transmitter's output power should be 
set when the transmitter is keyed to Mark 
frequency (MARK CTR SPACE switch to 
MARK). 

(f) Remove Card Extender and reinstall module under test. 

9. 2. 2 Dual Amplifiers 

Central amplifiers are RFL Model 14717. 

(a) Insure that all transmitters on each input phone line are transmitting. 

(b) Insert a HP Model 400D VTVM (or equivalent) into the OUT and COM 
test points of either amplifier 1 or 2 and set output power to -10 DBM. 

9.2.3 Receiver Gain 

Central receivers are either 3F, RFL Model HB-35605 (Dual module) or 2F, 
RFL Model HB 35600. 

• For 3F receivers 

(a) Use Card Extender keyway 3 (count from top). 

(b) After initial set-up of Card Extender, remove the receiver Filter 
module (righl-hand module of the receiver under test), insert the Card Extender into 
module slot, and install Filter module into Card Extender 

(c) Reset Card Extender DB - 10 DB switch to 10 DB. 

(d) Insure that the street transmitter corresponding to the receiver is 
keyed to its MARK output. 



9-2 






(e) Insert 20,000 ohms/ voltmeter (Simpson 260 or equivalent), set to 
read 12 vdc, into the MARK and COM test points of the receiver under test (left-hand 
module) . 

(f) Reduce receiver SENS control (ccw) until voltmeter reads +6.5 vdc ± vdc. 
Slowly increase SENS control (cw) until voltmeter just drops to ± 1 vdc. 

(g) Remove Card Extender, replace receiver filter module. 
® 2F Receivers 

(a) Use Card 'Extender keyway 12 (count -from top). 

(b) After initial set-up of Card Extender as detailed in Section 9. 2 (c), 
remove the receiver module, insert the Card Extender into module slot and install module 
into Card Extender. 

(c) Reset Card Extender DB - 10 DB switch to 10 DB. 

(d) Ensure that the street transmitter corresponding to the receiver under 
test is keyed to its MARK output. Corresponding transmitters are located using the 
Cross Reference Directory. 

(e) Insert 20,000 ohms/volt voltmeter (Simpson 260 or equivalent), set 
to read 12 vdc, into the DC OUT and COM test points of the receiver under test. 

(f) Reduce receiver SENS control (ccw) until voltmeter reads +12 vdc. 
Slowly increase SENS control (cw) until voltmeter just drops to ± 1 vdc. 

(g) Remove Card Extender, replace module. 

9.3 Field Equipment Alignment Procedures 

The replacement of certain types of Field Equipment requires the new equip- 
ment to be aligned to specific field conditions. The types of Field Equipment that require 
alignment are: 

(1) Timing Tray 

(2) 3F receivers 

(3) 2F and 3F transmitter 

(4) Vehicle Detectors 

(5) Bus Detectors 

The alignment procedures for the above equipments are described in the 
following paragraphs. 



9-3 



9.3.1 Timing Tray Alignment 

When a Timing Tray is installed at an intersection, the cam breakout and 

timing dial key arrangement must be in accordance with the timing requirements for that 
intersection. This can be done in either of the following ways: 

(a) Breakout cams and insert timing dial keys in accordance with the Cam 
Breakout and Dial Set-up sheet that is in the documentation package in the cabinet. 

(b) Remove the camshaft and dial units (if operating) from the Timing Tray 
to be removed and install them in the new Timing Tray. Itthis course of action is 
followed, the procedure specified in the Manual For UTCS Controllers and Controller 
Adapters for removing and replacing camshaft should be followed. 

9.3.2 Communications Equipment 

Use a communications equipment Card Extender for all output and input signal 
level adjustments that are required in Sections 9. 3.2. 1 and 9. 3. 2. 2. 

The Card Extender initial set up for any street communications module is as 
follows: 

(a) Select correct keyway adapter board (in plastic box) . 

(b) Spring-out keyway adapter clips, insert keyway adapter in edge connector 
and reinsert clips. 

(c) Set Card Extender switches as follows: 
MARK-CTR -SPACE to CTR 
ON-TEST to ON 

DB - 10 DB to DB 
LINE -OFF -LOAD to LINE 
9.3.2.1 Hold and Advance Receiver 

(a) Use Card Extender Keyway 3 (count from top). 

(b) After initial set-up of Card Extender per Section 9. 3. 2, remove the 
receiver Filter module (right-hand module of the receiver under test), insert the 
Card Extender into module slot, and install Filter module into Card Extender 



9-4 



(c) Reset Card Extender DB - 10 DB switch to 10 DB. 

(d) Insure that the Central transmitter corresponding to the receiver- 
under test is keyed to its MARK output 

(e) Insert 20,000 ohms/volt voltmeter (Simpson 260 or equivalent), set to 
read 12 vdc, into the MARK and COM test points of the receiver-under-test Receiver 
module (left-hand module). 

(f) Reduce receiver SENS control (ccw) until voltmeter reads +12 volts 
d. c. Slowly increase SENS control (cw) until voltmeter just drops to ± 1 vdc, 

(g) Remove Card Extender and replace receiver Filter module. 
9.3.2.2 A-Phase Green, Vehicle Detector and Bus Detector Transmitters 

(a) Use keyway 14 (count from top). 

(b) After initial set-up of Card Extender per Section 9,3.2, remove module 
under test, insert Card Extender into module slot, insert module under test into Card 
Extender. 

(c) Reset Card Extender switches as follows: 
o ON-TEST to TEST. 

• LOAD -OFF -LINE to LOAD. 

• MARK-CTR-SPACE to MARK. 

(d) Plug in High impedance power meter (HP Model 400D or equivalent) to Jl 
and J2 of Card Extender (meter ungrounded) . 

(e) Set each transmitter's output level to value called for in the Cross Reference 
*. irectory. 

NCTES 

1. Because the Card Extender terminates each 
transmitter's output in 600 ohms when the 
LOAD -OFF -LINE switch is in LOAD, the 
HP 400D meter will read directly in DBM. 



9-5 



2. Each transmitter's output power should be 
set when the transmitter is keyed to MARK 
frequency ("MARK-CTR-SPACE" to MARK). 

(f) Remove Card Extender and reinstall module under test. 

9.3.3 Vehicle Detector 

The detector is tuned in the field as follows. See Figure 9-1 for the front panel 
controls. 

(a) 1 . Put mode switch in the tune position. 

2. Turn the sensitivity control to the full clockwise position. 

(b) 1. Put No. 1 switch (coarse) tuning switch in position, fully 

clockwise. 

2. Put No. 2 (medium) and No. 3 (fine) tuning switches in position, 
fully counter-clockwise. 

3. The meter may read up scale, over 9 volts. 

(c) If meter reads 9 volts or less leave No. 1 switch (coarse) in position 
fully clockwise. If meter reads over 9 volts rotate No. 1 switch (coarse) counter- 
clockwise to the first position that produces less than 9 volts on the meter. Leave No. 1 
switch in this position. 

(d) Rotate No. 2 switch (medium) clockwise to a position that causes the 
meter to read close to 9 volts but not over 9. Leave No. 2 switch at this position. 

(e) Rotate No. 3 switch (fine) clockwise to a position that causes the meter 
to read approximately 9 volts. Leave No. 3 switch at this position. 

NOTE 

If above instructions are carefully followed, 
Detector should work satisfactorily at any volt- 
age from 6 to 12 volts. 

(f) Put the meter switch in indicate position and the meter may read up 
scale. If so, push the discharge button until the meter drops to zero. The unit is now 
ready to detect vehicles. 



9-8 




Figure 9-1. Vehicle Detector 



9-7 



NOTE 

The Detector should now be tuned to the loop. 
The meter will swing up scale to indicate the 
presence of a vehicle. The meter swings 
down scale with no vehicle present. 

(g) Wait a few minutes without pushing the discharge switch for the meter 
to drop to zero after the timing circuit has discharged itself. 

(h) After detector is tuned, and meter reads zero, if a vehicle passes over 
the loop the meter should jump to approximately 3/4 scale. When vehicle leaves loop the 
voltage reading should drop to zero. 

9.3.4 Bus Detector 

Adjust the Bus Detector Receiver two front panel sensitivity controls (two) to 
maximum sensitivity by rotation to maximum clockwise position. The control is a twenty 
(20) turn variable resistor. Full end position occurs when an internal slip clutch operates 
audibly. A small (1/8" bladewidth) screwdriver is required. 

(a) Bus Detector Transmitter Positioning 

The calibration transmitter shall be positioned over the embedded roadway loop 
on a non-conductive support as follows: 

Locate the transmitter over the roadway loop at least three (3) feet from the end 
of the loop. 

Orient the transmitter such that its position is representative of its installed bus 
position in all respects except for roadway clearance height. The transmitter shall be 
positioned as follows: 

• The mounting surface up. 

• The plane of the mounting surface parallel to the roadway surface (roughly 
horizontal) . 

• The long central axis of the transmitter in the same plane as the two roadway 
loop wires* 

• The bottom of the transmitter located 19 inches above the roadway. 



9-8 



(b) Threshold Adjustment 

(1) Connect a direct current voltmeter to the front panel test points 
as follows: 

Positive lead to the STOP test point. 
Negative lead to the GRD test point. 

The meter will indicate approximately volts when a transmitter 
signal in the STOP mode exceeds the threshold level, and approximately 5 volts otherwise. 

(2) Set the Transmitter Control switch continuously from the down 
(Stop) position to the up (Through) position and back while observing the voltmeter. 
Rotate STOP sensitivity control on the front panel in a counter-clockwise direction 
until the voltmeter reading remains at approximately 5 volts and then rotate the 
sensitivity control slowly clockwise until the meter again reads approximately volts 
when the Transmitter Control switch is in the down (Stop) position. This setting is 
the STOP channel threshold adjustment setting. 

(3) Remove the voltmeter connections from the test points. 

(4) Connect a direct current voltmeter to the front panel test points 
as follows: 

Positive lead to the THROUGH test point. 
Negative lead to the GRD test point. 

Set the Transmitter Control switch continuously from the down (Stop) position 
to the up (Through) position and back while observing the voltmeter. Rotate THROUGH 
sensitivity control on the front panel in the same way used to set the STOP channel 
threshold sensitivity setting. This is the THROUGH channel threshold adjustment 
setting. 

Remove the voltmeter connections from the test points. 

The threshold sensitivity control settings can be made if necessary with the 
Transmitter Control switch remaining in the down (Stop) position for the STOP channel 
setting and in the up (Through) position for the THROUGH channel setting. In this case 
the threshold sensitivity control is turned counter -clockwise until the voltmeter reads 
to approximately +5 volts, and then turned slowly clockwise just enough so that the 
voltmeter reads zero again. 



9-9 



The adjustments can be checked by observing the action of the voltmeter connected 
to the front panel test points when a normally mounted Bus Detector Transmitter passes 
slowly over the loop. When the sensitivity is properly adjusted, the meter should deflect 
to volts when the transmitter is approximately one foot from the loop and should remain 
there until the transmitter is approximately one foot beyond the loop. The voltmeter 
reading should remain at about +5 volts whenever the transmitter is outside this region. 



9-10 



SECTION 10 
BUS DETECTOR TRANSMITTER AND DEPOT MONITORING EQUIPMENT 



10. 1 General 



The Bus Detector Transmitter and Transmitter Control Unit are mounted in the 
bus. The Control Unit is mounted on the steering column and the transmitter is mounted 

on the underside of the vehicle approximately 13 inches above the roadway. 

»," 

10. 2 Transmitter Control Unit 



The Control Unit is a driver operated control mounted on the right hand 
side of the steering column. A covered three wire cable extention from the unit run® 
down the steering column to the floorboard and into a terminal board that is located on 
the right hand side of the instrument panel (by the door) in the circuit breaker section. 

10.2.1 Operation 

When the control lever is put in the down (Stop) position, a 12 volt return ©r 

ground signal is applied to terminal four of the terminal board in the bus. From there 
the signal goes to the Bus Detector Transmitter where it energizes the transmitter STOP 
channel. When the control lever is put in the up (Through) position, a + 12 vdc signal 
is applied to terminal 4 of the bus terminal board. From there it goes to the transmitter 
where it energizes the THROUGH channel. 

10.3 Bus Detector Transmitter 



The Bus Detector Transmitter is a completely encapsulated unit that is approxi- 
mately 13-1/2 inches long by 3-1/2 inches wide by 4 inches high. It has a covered four 
lead cable extention approximately 15 inches long that is terminated in a Molex No„ 1653-P1 
connector. It is moulted benerth the bu£ on the right side, forward of the rear axel 
near the rear door step. The connector mates with a similar connector on a covered 
four wire cable that runs to the bus terminal board in the front of the bus. The trans- 
mitter is oriented such that its long dimension is perpendicular to the side of the bus and 
the bottom edge is approximately 13 inches above the roadway. The transmitter obtains 
its power from the bus 12 volt supply via the extention cable and terminal board in the 
front of the bus. 



JQ-i 



10.3.1 Operation 

Upon receipt of a Stop signal (ground), the Stop channel is energized and a 
magnetic field of 168 kHz is generated in a direction toward the roadway. 

Upon receipt of a Through signal (+12 vdc), the Through channel is energized 
and a magnetic field of 182 kHz is generated. 

10.4 Malfunctions 



Each bus will undergo a daily go-no-go test routine. This test routine is 
described in Section 10.5.3. The assumption has been made that if the transmitter can 
operate in one of the modes, Stop or Through, it can also operate in the other mode. 

If it is determined that the equipment on the bus is not operating, the following 
steps are to be followed in the order noted below: 

(a) Turn the ignition switch on. 

(b) Check for +12 vdc between terminals 1 (+) and 2 (Ret.) on the bus terminal 



board. 



(1) If no voltage exists, check the bus circuit breaker. If still no voltage 
exists, the fault lies between the bus +12 volt power and the circuit 
breaker. 

(2) If 12 vdc is on the terminal board, put the control lever in the down 
(Stop) position and check for 12 vdc between terminals 1(+) and 4 
(Ret) on the terminal board. If no voltage exists, replace the Control 
Unit. If the +12 vdc is present, put the lever in the up (Through) 
position and check for +12 vdc between terminal 4 (+) and 2 (Ret) 

on the terminal board. If the voltage is not there, replace the Control 
Unit. If the voltage is there, the fault lies in the -cable -from the terminal 
board to the transmitter or in the transmitter. 

(3) Underneath the bus, remove the electrical tape and disengage the 

Mo lex connectors. On the connector attached to the cable going to the 
bus terminal board the following voltages should appear: 

• Pin A (+) to Pin B (Ret) +12 vdc continuously 

• Pin A (+) to Pin D (Ret) +12 vdc with control lever down 

• Pin D (+) to Pin B (Ret) +12 vdc with control lever up 



10-2 



If any of the above voltages are not there, the cable should be removed 
and replaced. 

If all of the above voltages are there, the Bus Detector Transmitter 
should be removed and replaced. After installing the new transmitter the 

Molex connectors is engaged and electrical tape put around the con- 
nectors to effect a water tight seal. 

10.5 Bus Detector Transmitter Test Fixtures 

10.5.1 General 

Two types of Bus Detector Transmitter Test Fixtures are available. One fixture 
is used to determine if the transmitter is working after it has been installed and while 
the bus is still up on the lift. The other fixture provides a daily check on the operation 
of the transmitter as the bus comes into the garage. 

10. 5. 2 Installation Test Fixture 



The installation test fixture is a go -no -go tester that is hand held. It is 
approximately 9 inches long, 4 inches wide and 1 inch high. It consists of a 35 turn coil 
of No. 18 AWG wire and a neon bulb. When in close proximity to the Bus Detector 
Transmitter, the radiated energy from the transmitter induces a voltage in the coil that 
is sufficient to light the neon bulb. 

10.5.2. 1 Operation 

After the Bus Detector Transmitter has been installed and while the bus Is 
still on the lift, the transmitter is turned on and the hand control is placed in either 
the Stop or Through position. The test fixture is brough up to the transmitter under 
the bus. If the neon bulb lights, the transmitter is considered to be working and the 
installation is complete. 

10.5.2.2 Malfunction 

While the test fixture contains a minimum number of parts and is very reliable, 
it should be checked periodically with a transmitter that is known to be operating properly. 
If the fixture fails to operate, replace the neon bulb (NE-51H). 

10.5.3 Operation al Test Fixture 

The operational test fixture uses a Bus Detector Receiver, Bus Detector Loop 

and traffic signal head to test the Bus Detector Transmitters on a daily basis. The loop 



10-3 



is embedded in the road at a point near the bus terminal. The signal head is positioned 
such that the driver can see it as he passes over the loop. The Bus Detector Receiver 
is plugged into a single module communications wrap around that has a built in +12 vdc 
power supply. The wrap around and receiver are housed in a pole mounted cabinet 
which is installed at the side of the road near the loop. Because the normal output of 
the bus receiver is a 50 ms pulse, a pulse strecher has been added to the receiver to 
keep the signal head lamp lit long enough for the driver to see (approximately 3 seconds). 
The pulse strecher is made up of a sensitive mercury wetted relay that converts the 
Bus Detector Receiver dc output pulse to 115 vac. The ac pulse drives a time delay 
relay that controls the signal head lamp. 

10.3.3. 1 Operation 

When the driver brings his bus into the garage, the hand control unit will be 
in either the Stop or Through position and the Bus Detector Transmitter energized. 
As the bus passes over the loop, a signal will be sent to the receiver which, in turn, 
illuminates the green light in the signal head. If the light is illuminated, the transmitter 
is considered to be working and no further action is taken. If the light fails to come on, 
the driver should notify the garage personnel and remedial action is then taken in 
accordance with the procedures put forth in Section 10.4 of this manual. 

10.5.3.2 Malfunctions 



If the signal head lamp fails to come on for a series of busses, the test fixture 
becomes suspect of failure. The installation fixture should be used on one of the busses 
to verify the failure. If required, the following steps should then be taken in the order 
specified: 

(a) Check the bulb in the signal head. 

(b) Check for 115 vac power in the cabinet. 

(c) Put a high impedance (20, 000 ohms/volt) dc voltmeter between test points Stop 
(+) and ground and check for approximately five volts. If the five volts is not there, 

the fault is in either the dc power supply or receiver. Remove and replace the 
receiver. If the voltage is still not there, remove the receiver from the wrap around 
and replace the wrap around with its built in power supply. 

If the voltage is there, the fault is in the pulse stretcher. The time delay 
relay may be energized, and the signal lamp lit, by shorting pins 5 and 6 of the time 
delay relay. If the lamp does not light, replace the time delay relay. If the lamp lights, 
replace the mercury wetted relay. 

10-4 



APPENDIX A 



GLOSSARY 



A. 1 General 



This glossary contains an explanation of the terms used in this manual. It is 
necessary that the technician understand these terms in order to perform the maintenance 
procedures outlined in this manual. 

A. 2 Explaination of Terms .,"" 

A-Phase Green - The return discrete signal from a controller which is trans- 
mitted to the computer and map display. It is initiated at the start of the first controller timing 
interval, which represents the "main" street going green, and is present during the time that this 
phase- is green. The chosen phase direction for each intersection corresponds to the 
direction of the "main" street traffic flow and is reflected in the intersection arrows on 
the map display. 

Standby Mode (Off Line) - Computer control is relinquished to local dial system 
control for a controller, controllers in a section, or all controllers in the system. Sur- 
veillance of all detectors continues with respect to failure status and the Speed, Volume, 
and Occupancy. 

Computer Control Mode (On Line) - When a controller, controllers in a section, 
or all controllers in the system are brought under computer control. 

Presence - Detector "on state" or total detector pulse duration, in seconds, for 
a single vehicle. 

Discrete - A long DC signal, as opposed to a pulse,, 

Radio Link - The radio receiver and associated electronics at Central providing 
discrete signals which are used to rynchronize the UTCS generated controller cycles 
with those referenced by the district's master clock. 

Cathode Ray Tube (CRT) Display Unit - A device using a cathode ray tube and 
associated electronics which provides an alphanumeric display of UTCS/BPS status and 
performance. 

Central - The facility in Washington^ D.C. which houses the UTCS/BPS compu- 
ters, communications, display, and control equipment. 



A-l 



Central Processor Unit (CPU) - The portion of the UTCS Computer (CPU #1) or 
BPS Computer (CPU #2) which performs the logical and arithmetical functions. CPU #1 
is dedicated to UTCS and all interface functions. CPU #2 is dedicated to BPS functions 
and UTCS/BPS raw history tape generation. 

Communications (COM) - Refers to equipment at Central which provides the in- 
terface between the incoming and outgoing telephone lines and the Computer Interface 
Unit. 

Computer Interface Unit (CIU) - The portion of the UTCS/BPS hardware which 
provides the interface between the UTCS Computer and external central equipments, and 
incoming and outgoing signals to central communications. It is also referred to as the 
I/O Multiplexer or MUX. 

Rapid Access Disc (RAD) - Auxiliary storage device used for storing control 
patterns, the UTCS/BPS program, the UTCS/BPS configuration at shutdown, and the 
Real-Time Batch Monitor (RBM). The UTCS/BPS program and configuration are read 
into core memory during CPU start-up. 

Teletypewriter (TTY) - A UTCS/BPS peripheral equipment used for two-way 
communications between the computers and the operator. 

EB - A pole-mounted "electronics box", used to house remote vehicle detector 
electronic units and remote bus detector receivers. 

CB - A large pad- mounted field cabinet, used to house local vehicle detector 
electronics, local bus detector receivers, communication equipment, controller adapter 
and controller. 

f Q - The carrier frequency of a frequency shift transmitter. 

f 3 - The "SPACE" frequency, f Q minus 30 hertz, which results when An operat- 
ing frequency shift transmitter has its SPACE Key input actuated. 

f m - The "MARK" frequency, f pluL 30 hertz, which results when an operating 
frequency shift transmitter has its MARK Key input actuated. (Note: On a 3F transmitter, 
the MARK and SPACE Key inputs cannot be actuated simultaneously. ) 

BE - The "BUS ERROR" signal which results when the Carrier Detect output 
-of the 3F receiver indicates that no signal, within the receiver bandwidth, has been 
detected. 



A-2 



BS - The "BUS STOP" signal, originated by the manual action of the bus driver, 
results in the detection of a MARK frequency signal by the 3F receiver, 

BT - The "BUS THROUGH" signal, originated by the manual action of the bus 
driver, results in the detection of a SPACE frequency signal by the 3F receiver. 

HOLD - A long duration pulse which is used to transfer field controllers from 
local dial control to Central Computer control. 

ADVANCE - A 0. 5 second pulse which will step the cam in a field controller, 
only if the HOLD signal has transferred the controller to Central Computer control. 

FS - Frequency shift keying communication. 

Traffic Control Panel (TCP) - The panel used by the operator to select the 
following; 

System Control 
Map Control 
Malfunction Indicators 
Status Display 

Card Punch - Unit utilized by computer to punch computer cards. 

Card Reader - Reads data from punch cards into computer. 

Magnetic Tape Master (MTM) - Computer program storage for UTCS or BPS 
System. 

Magnetic Tape Slave (MTS) - Computer tape unit for data storage using the 
electronics of a master. Used in the UTCS system. 

Key Punch - Unit used to manually enter data on computer cards. 

Line Printer - Unit to obtain hard copy of 15 minute reports as well as end 
of day report. 

Multiplexer Input Output Processor (MIOP) - Unit that interfaces all computer 
peripherals including the CIU with the UTCS computer (CPU #1). This processor also 
has independent access to core memory to enable it to execute I/O tasks in parallel with 
other CPU operations. 



A-3/A-4 



APPENDpc b 

SPECIAL TEST FIXTURES 

Two special test fixtures are available for use on the UTCS/BPS equipment. 
They are: 

(1) Map Display Test Fixture 

(2) Communications Card Extender "" 

B. 1 Map Display Test Fixture 

The Map Test Fixture is connected to the Map Display Electronics Unit 
connectors Jll and J12. 24 vdc power is required on P- 11, Pin G toenergize the DISPLAY 
ON relay of the Map Display via J- 11, Pin F. See Figure B-3. 

Figure B-l shows the location of each switch on the front panel. To initialize 
the test fixture take the following steps. 

(1) Place the controls in the position indicated below: 



Switch 


Position 


POWER 


ON 


TEST 1 


OFF 


TEST 2 


OFF 


FAULT/FAULT 


FAULT 


DISPLAY 


ON 


FLASH 


OFF 


STATE + - 
BIT SELECT A 


+ 
ALL SWITCHES SEL 


BIT SELECT B 


ALL SWITCHES SEL 


STATE 1 


DOWN 


STATE 2 


DOWN 



(2) Input the Communications Inhibit command in the following manner: 

Set Word A (Bit Select A) equal to 1 
Set Word B (Bit Select B) equal to 2 
Set State Bit 1 up 



B-l 



Press the momentary TRANSMIT switch to initialize the Map Electronics Unit. 
The Map Electronics Unit will now accept addressing from the test fixture. 

It should be noted that the Address word A (Bit Select A) and Address word B 
(Bit Select B) are in BCD format where switch 1 is the LSB of the A address and switch 
5 is the LSB of the B address. See Figure B-l for a value table. 

Once the test fixture has been initialized Controller Addresses from Table B-l 
or Link Addresses from Table B-2 can be entered via the Bit Select switches SI through 
9 and State switches S10 and 11. The address A and B in the tables is the BCD number. 

The momentary TRANSMIT switch, when pressed will cause the Map to display 
the green light of the controller selected or illuminate the Link selected. 

If the STATE switch (S10 or 11) specified in the tables is placed in the down 
position, then when the momentary TRANSMIT switch is pressed the Controller red light 
is illuminated or the Link indicator is extinguished. 

The State switch (+, -) selects the polarity of the internal synchronizing signal 
and has no effect on the operation of the test fixture. The Map Display will function with 
either (+) or (-) synchronization. 



If the FAULT/FAULT switch is placed in the FAULT position, then the 
COMPUTER IN STAND-BY legend is illuminated. 

If the TEST 1 switch is placed in the ON position, all intersections are 
illuminated red and half of the Link Arrows are illuminated. All legends which are green 
are illuminated. 

If the TEST 2 switch is placed in the ON position, all intersections are illuminated 
green and the other half of the Link Arrows are illuminated. All legends are illuminated 
both red and green. 

TEST switches 1 and 2 should not be placed in the ON position at the same time. 

If the FLASH switch is placed in the ON position and one of the test switches 
is the ON position, then the Link Arrows illuminated will flash on and off. 



B-2 



BIT 

SELECT 

A 

A 



a r 



BIT 

SELECT 

B 

a 



STATE 
"\ I 2 



SEL 



<g> <q> <g> <g> & s s <§> <& s <o> 



SEL I 2 34 56 789 

TEST TEST COMP STAND BY 
I 2 

ON O FAULT 

FAULT 



O 



POWER 



ON 
OFF 



<0> 



10 II 

DISPLAY FLASH 



f 



(0) OFF<0) <S 



+ 5V 



STATE 



TRANSMIT 



Switch No. 

BCD 

Value 



1 


Word - A 






Word - B 




1 
1 


2 
2 


3 


4 


5 


6 


7 


8 


9 


4 


8 


1 


2 


4 


8 


16 



Figure B-l. Map Fixture, Front Panel 



B-3 



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FAN 




1 


+ 5VDC POWER SUPPLY 


2 


+ 28V DC POWER SUPPLY 




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EXPANSION AREA 



INTERFACE AND SIGNAL 
LOGIC 



TRAFFIC SIGNAL INDICATORS 



LINK INDICATORS 



TS=TRAFFIC SIGNAL CARDS 
S=SENS0R CARDS 



Figure B-2. Map Electronic Circuit Card Location 



B-4 






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B-5 



TABLE B-l. MAP DISPLAY TEST FDCTURE, 
CONTROLLER ADDRESS/LOCATION 



Contr. 


... 

Location 


A-Phase 

Input 
Connector 


Address 
(BCD) 


State 

Bit 

(UP) 


Card L 
Ref Fi 


•ocation 

l. B-2 


No. 


A 1 


B 


Tray 


Slot 


001 


M/30th 


P16-A 





5 


1 


A4 


C4 


002 


Wisconsin/Whitehaven 


P16-J 





5 


2 


A4 


C5 


003 


Wisconsin/34 th * 


P16-B 


1 


5 


1 


A4 


C4 


004 


Wisconsin/Porter 


P16-K 


1 


5 


2 


A4 


C5 


005 


Wisconsin/Newark 


P16-C 


2 


5 


1 


A4 


C4 


006 


Wisconsin/Edmunds 


P16-L 


2 


5 


2 


A4 


C5 


007 


Wisconsin/Woodley 


P16-D 


3 


5 


1 


A4 


C4 


008 


Not Used 


P16-M 


3 


5 


2 


A4 


C5 


009 


Wisconsin/Mass. 


P14-J 


4 


2 


1 


A3 


C15 


010 


Wisconsin/Garfield 


- 


- 


- 


- 


- 


- 




A - Northbound 


P14-A 


4 


2 


2 


A3 


C14 




B - Southbound 


P14-B 


4 


2 


2 


A3 


C14 


011 


Mass. /Garfield 


P16-E 


4 


5 


1 


A4 


C4 


012 


Wisconsin/R 


P16-N 


4 


5 


2 


A4 


C5 


013 


U/^° 


P14-K 


5 


2 


1 


A3 


C15 


014 


M/33 rd * 


„ 


- 


- 


- 


- 


- 




A - Eastbound 


P14-C 


5 


2 


2 


A3 


C14 




B - Westbound 


P14-D 


5 


2 


2 


A3 


C14 


015 


M/Key Bridge 


- 


= 


- 


- 


- 


- 




A - Key Bridge Right Turn 


P15-T 


6 


2 


1 


A3 


C21 




B - M heit Turn 


P15--U 


6 


2 


1 


43 


X£l 




C - Key Bridge Left Turn 




6 


2 


1 


A3 


C21 


016 


M/34 th * 


- 


_ 


- 


- 


- 


- 




A M/34 th * Eastbound 


P14-E 


6 


2 


2 


A3 


C14 




B - M/34 111, Westbound 


P14-F 


6 


2 


2 


A3 


C14 


017. 


Wisconsin/M 


- 


«, 


- 


- 


- 


- 




A - M Eastbound/Westbound 


P14-T 


7 


2 


1 


A3 


C16 




B - Wisconsin South 


P14-U 


7 


2 


1 


A3 


C16 


018 


M/31 st * 


P15-A 


7 


2 


2 


A3 


C18 


019 


Penn./^ ** 


P14-L 


8 


2 


i 


A3 


C15 



Table B-l. Map Dis 
Controller Address/Location 







A- Phase 


Address 


State 


Card Location 


Contr. 


Location 


Input 
Connector 


(BCD) 


Bit 
(UP) 


Ref Fi 


?. B-2 


No. 


fAT 


B 


Tray 


Slot 


020 


Verm/ZB^' /M 


«, 


- 


- 


- 


- 


- 




A - M Westbound 


P15-e 


8 


2 


2 


A3 


24 




B - Penn. Eastbound 


P15-f 


8 


2 


2 


A3 


24 




C - Penn. Westbound 


P15-d 


3 


2 


2 


A3 


24 




D - 28 th# Between Penn. /M 


D 


8 : 


2 


2 


A3 


24 


021 


Penn. /26 th * 


P16-F 


5 


5 


1 


A4 


C4 


022 


Q/33 rd# 


P16-P 


5 


§ 


2 


A4 


C5 


023 


Penn^^VL 


P14-M 


9 


2 


1 


A3 


CIS 


024 


Penn/24 th * 


„ 








- 


- 




A - Penn Eastbound 


P15-g 


9 


2 


2 


A3 


C25 




B - K Eastbound 


P15-h 


9 


2 


2 


A3 


C25 




C - K Westbound 




9 


2 


2 


A3 


C25 




D - Penn Westbound 


„ 


9 


2 


2 


A3 


C25 


025 


K/^^VPenn. 


P16-G 


6 


5 


1 


A4 


C4 


026 


Washington Circle SW 


P16-R 


6 


5 


2 


A4 


C5 


027 


Washington Circle NE 


P16-H 


7 


§ 


1 


A4 


C4 


028 


23 rd * /E Westbound 


P16-S 


7 


5 


2 


A4 


C5 


029 


23 rd '/C 


P1S=T 


8 


5 


1 


A4 


C6 


030 


21 st 7C 


Pi6-e 


3 


5 


2 


A4 


C7 


031 


Constitution/23 rd * 


. 


— 






- 


- 




A - Constitution Eastbound 


P14-V 


10 


2 


1 


J\$ 


C16 




B - Constitution Westbound 


P14-W 


10 


2 


1 


A3 


Ct€ 


032 


Constitution/22 nd * 


P15-B 


10 


2 


2 


A3 


CIS 


033 


Constitution/2 1 st 


" 




_ 


- 


- 


- 




A - Constitution Eastbound 


P14-X 


11 


2 


1 


A3 


C16 




B - Constitution Westbound 


P14-Z 


11 


2 


1 


A3 


C16 


034 


Virginia/E 


P15-C 


11 


2 


2 


A3 


C18 


035 


Virginia/2 1 st * 


P14-N 


12 


2 


1 


A3 


C15 


036 


Virginia^O 111 ' 




= 


- 


- 


~ 


. 




A - Virginia Westbound 


PX5-P 


12 




2 


A3 


C20 




B - Virginia Eastbound 


P15-N 


12 


2 


2 


A3 


C20 




C - Virginia Left Turn 


1 
B~ l ? 


12 


& 


2 


A3 


C20 



Table B-l. Map Display Test Fixture, 
Controller Address/ Location (Continued) 



Cant jr. 


Location 


A-Phase 

Input 
Connector 


Address 
(BCD) 


State 

Bit 

(UP) 


Card Location 
R.,i Fig. B-2 


tfQ, 


A 


B 


Tray 


Slot 


037 


Virginia/ 19 th * 


- 


- 


- 


- 


- 


- 




A - Virginia 


PI5-R 


13 


2 


1 


A3 


C21 




B - C Eastbound 


PI5-S 


13 


2 


1 


A3 


C21 




C - C Westbound 


- 


13 


2 


1 


A3 


C21 


0S» 


Virginia/ 18 th ' 


PI5-D 


13 


* : 2 


2 


A3 


C18 


030 


Constitution^ 1 * 1, 


- 


- 


- 


- 


- 


- 




A - Constitution East- 
bound 


PI4-a 


14 


2 


1 


A3 


C16 




B - Constitution West- 
bound 


PI4-b 


14 


2 


1 


A3 


C16 


940 


Constitution/ 19 th * 


PI5-E 


14 


2 


2 


A3 


C18 


041 


Constitution/ 18 ' 


- 


. 


«. 


a. 


_ 


_ 




A - Constitution East- 
bound 


PI5-V 


15 


2 


1 


A3 


C21 




B - Constitution West- 
bound 


PI5-W 


15 


2 


1 


A3 


C21 




C - Constitution East- 
bound, Left Turn 


— 


15 


2 


1 


A3 


C22 


042 


Constitution/ 17 th * 


PI5-F 


15 


2 


2 


A3 


C18 


043 


E Westbound/20 th * 


PI6-U 


9 


5 


1 


A4 


C6 


044 


E Westbound/2 1 st ' 


PI6-d 


9 


5 


2 


A4 


C7 


045 


th 

E Westbound/ 19 


PI6-V 


10 


5 


1 


A4 


C6 


046 


E Westbound/ 18 th * 


PI6-e 


10 


5 


2 


A4 


C7 


047 


E Eastbound/20 th * 


PI6-W 


11 


5 


1 


A4 


C6 


04B 


E Eastbound/ 19 th * 


PI6-f 


11 


5 


2 


A4 


C7 


049 


E Eastbound/ 18 th * 


PI6-X 


12 


5 


1 


A4 


C6 


050 


C onstitution/Henry 
Bacon 


PI6-g 


12 


5 


2 


A4 


C7 



B-8 



Table B-l Map Display Test Fixture, 
Controller Address/ Location 



Contr. 


Location 


A-Phase 

Input 
Connector 


Address 
(BCD) 


State 

Bit 

(UP) 


Card Location 
Ref Fig. B-2 


No. 


A | B 


Tray 


Slot 


051 


17 th 7F 


PI6-Z 


13 5 


1 


A4 


C6 


052 


17 th ' /New York 


PI6-h 


13 


5 


2 


A4 


C7 


053 


E Eastbound/17 th * 


- 


- 


_ 


- 


_ 


- 




A- n^'Southbound/E 
B - 17 th, Northbound/E 


PI4-C 
PI4-d 






3 
3 


1 
1 


Ad 

A3 


C17 
C17 


054 


Venn. /18 th ' 


PI5-G 





3 


2 


A3 


C18 


055 


VemjYI^ 


PI6-a 


14 


5 


1 


A4 


C6 


056 


Perm. /Jackson 


PI6-J 


14 


5 


2 


A4 


C7 


057 


G/ie^' 


PI6-b 


15 


5 


1 


A4 


C6 


058 


17 '/Executive Building 


PI6-k 


15 


5 


2 


A4 


C7 


059 


K/W^* 


P17-A 





6 


1 


A4 


C9 


060 


K/li^* 


PH-J 





6 


2 


A4 


C10 


061 


17 th * /Conn. /K 


PI7-B 


1 


6 


1 


A4 


C9 


062 


1/20^ 


PI7-K 


1 


6 


2 


A4 


C10 


063 


I/19 th * 


PI7-C 


2 


6 


1 


A4 


C9 


064 


I/18 th * 


PI7-L 


2 


6 


2 


A4 


C10 


065 


i/vP- 


- 


«, 


- 


- 


- 


- 




A - I Southbound 


PI4-e 


1 


3 


1 


A3 


C17 




B - 1 Northbound 


PI4-f 


1 


3 


1 


A3 


C17 


066 


Penn./lS^'/H 


. - 


-. 


- 


- 


- 


- 




A - Penn. Westbound 


PI4-G 


1 


3 


2 


A3 


C14 




B - Peraie Eastbound 


PI4-H 


1 


3 


2 


A3 


C14 


067 


H/IS*' 


PI4-P 


2 


3 


1 


A3 


C15 



B-9 



Table B-l. Map Display Test Fixture, 
Controller Address/ Location (Continued) 







A-Phase 


Address 


State 


Card Location 


Contr. 


Location 


Input \ 
Connector j 


(BCD) ! 


Bit 
(UP) 


Ref Fig. B-3 


No. 


A 


B 


Tray 


Blot 


068 


H/17 th * 


- 


- 


- 


- 


- 


- 




A - H/Northbound 


PI5-L 


2 


3 


2 


A3 


C20 




B - H/Southbound 


PI5-M 


2 


3 


2 


A3 


C20 


069 


Penn. /20 th * 


PI7-D 


3 


6 


1 


A4 


C9 


070 


Penn. /21 st ' 


PI7-M 


3 


" : 6 


2 


A4 


C10 


071 


Penn. /22 nd * 


- 


- 


- 


- 


. 


- 




A - Penn. Westbound/ 
22 nd * 


PI5-X 


3 


3 


1 


A3 


C22 




B - Penn. Eastbound/ 
22 nd * 


- 


3 


3 


1 


A3 


C22 




C - K Eastbound/22 nd * 


PI5-Z 


3 


3 


1 


A3 


C22 




B - K Westbound/22 nd * 


- 


3 


3 


1 


A3 


C22 


072 


K/21 St * 


PI5-H 


3 


3 


2 


A3 


C18 


073 


K/20* 11, 


PI7-E 


4 


6 


1 


A4 


C9 


074 


L/23 rd * 


PI7-N 


4 


6 


2 


A4 


C10 


075 


L/New Hampshire 


- 


- 


- 


- 


- 


- 




A - L/22 nd * 


PI4-g 


4 


3 


1 


A3 


C17 




B - New Hampshire 


PI4-h 


4 


3 


1 


A3 


C17 


076 


L/21 St - 


PI5-J 


4 


3 


2 


A3 


C20 


077 


L/20 th ' 


PI7-F 


■5 


-6 


1 


A4 


09 


078 


Not Used 


PI7-S 


5 


6 


2 


A4 


C10 


079 


Not Used 


PI7-G 


6 


6 


1 


A4 


C9 


080 


Not Used 


PI7-R 


6 


6 


2 


A4 


C10 


081 


L/17 th * 


PI7-H 


7 


6 


1 


A4 


C9 


082 


L/ie*' 


PI7-S 


7 


6 


2 


A4 


C10 


083 


L/IS" 1 ' 


PI7-T 


8 


6 


1 


A4 


Cll 



B-10 



Table B-l. Map Display Test Fixture, 
Controller Address/ Location (Continued) 



Comr. 


Location 


A-Phase 

Input 
Connector 


Address 
(BCD) 


State 

Bit 

(UP) 


Card Location 
Ref Fig. B-2 


No. 


A 


B 


Tray 


Slot 


084 


L/19 th ' 


PI7-C 


8 


6 


2 


A4 


C12 


085 


L/18 th ' 


PX7-U 


9 


6 


1 


A4 


CU 


086 


L/Conn. 


PI7-d 


9 


6 


2 


A4 


C12 


087 


K/17 th * 


PI7-V 


10 


6 


1 


A4 


Cll 


088 


K/16 th ' 


PI7-e 


10 


6 


2 


A4 


C12 


089 


K/IS" 1 ' 


PI7-W 


11 


6 


1 


A4 


Cll 


090 


1/ 17 th '/Conn. 


PI7-f 


11 


6 


2 


A4 


C12 


091 


I/16 th * 








- 


- 


- 




A -1/ 16 th * Southbound 


PI4-j 


5 


3 


1 


A3 


C17 




B -1/16 'Northbound 


PI4-k 


5 


3 


1 


A3 


C17 


092 


Not Used 


Unassigned 


5 


3 


2 


A3 


C20 


093 


H/Jackson/C onn. 


PI7-X 


12 


6 


1 


A4 


Cll 


094 


H/16 th ' 


PI7-g 


12 


6 


2 


A4 


C12 


095 


Not Used 


PI7-Z 


13 


6' 


1 


A4 


Cll 


096 


L/Vermont 


PI7-h 


13 


6 


2 


A4 


C12 


097 


h/U^' 


PI7-a 


14 


6 


1 


A4 


Cll 


098 


Not Used 


PI7-J 


14 


6 


-2 


A4 


rn 


099 


K/U** 1 ' 


PI7-b 


15 


6 


1 


A4 


Cll 


100 


K/ 15 th ' /Vermont 


PI7-k 


15 


6 


2 


A4 


C12 


101 


Not Used 


PI8-A 





7 


1 


A4 


Cll 


102 


Not Used 


PI8-J 





7 


2 


A4 


C12 


103 


Wisconsin/N 


PI8-B 


1 


7 


1 


A4 


C14 


104 


Wisconsin/O 


PI8-K 


1 

1 


7 


2 


A4 


C15 



B-ll 



Table B-l. Map Display Test Fixture, 
Controller Address/Location (Continued) 



Contr. 


Location 


A- Phase 
Input 
Connector 


Address 
(BCD) 


State 

Bit 

(UP) 


Card Location 
Ref Fie. B-3 


No. 


A | B 


Tray 


Slot 


105 


Wisconsin/P 


PI8-C 


2 ; 7 


1 


A4 


C14 


106 


Wisconsin/Q 


PI8-K 


2 7 


2 


A4 


C15 


107 


Not Used 


PI8-D 


3 


7 


1 


A4 


C14 


108 


Not Used 


PI8-M 


3 


7 


2 


A4 


C15 


109 


Virginia/23 rd * 


PI8-E 


4 


7 


1 


A4 


C14 


110 


G/23 rd * 


PI8-N 


4 


7 


2 


A4 


C15 


111 


G/22 nd * 


PI8-F 


5 


7 


1 


A4 


C14 


112 


Not Used 


PI8-P 


5 


7 


2 


A4 


C15 


113 


I/23 rd * 


PI8-G 


6 


7 


1 


A4 


C14 


114 


H/23 rd ' 


PI8-R 


6 


7 


2 


A4 


C15 


115 


18 th * /F. 


PI8-H 


7 


7 


1 


A4 


C14 


116 


20 th 7f 


PI8-S 


7 


7 


2 


A4 


C15 


117 


0/19^' 


PI5-a 


7 


3 


1 


A3 


C22 


118 


G/20 th ' 


PI5-j 


7 


3 


2 


A3 


C25 


119 


G/21 8t * 


PI5-b 


8 


3 


1 


A3 


C22 


120 


Wisconsin/Macomb 


PI5-k 


8 


3 


2 


A3 


C25 


121 


Wisconsin/C alvert 


- 


- 


- 


- 


- 


- 




A - Wisconsin North- 
bound 


PI4-R 


6 


3 


1 


AS 


C15 




B - Wisconsin South- 
bound 


PI4-S 


6 


3 


1 


A3 


C15 


122 


Wisconsin/Hall 


PI5-K 


6 


3 


2 


A3 


C20 


123 


Wisconsin/W Place 


PI5-C 


9 


3 


1 


A3 


C22 



B-12 



TABLE B-2. MAP DISPLAY TEST FDCTURE, 
LINK TEST ADDRESS/LOCATION 



Ref. 


Intersection 


Direction 


Address 
(BCD) 


State 

Bit 

(UP) 


Card Location 
(Ref. Fig. B-2) 


Contr. 


A | B 


Tray 


Slot 


009 


Wisconsin/Mass . 


S/B 


8 


16 


1 


A5' 


C4 






W/B 


9 


16 


1 


A5 


C4 






N/B 





16 


1 


A5 


C4 






E/B 


1 


16 


1 


A5 


C4 






E/B 


2 


46 


1 


A5 


C4 


010 


Wisconsin/Garfield 


S/B 


10 


16 


1 


A5 


C4 






W/B 


11 


16 


1 


A5 


C4 






N/B 


3 


16 


1 


A5 


C4 






E/B 


4 


16 


1 


A5 


C4 






S/BL.T. 


12 


16 


1 


A5 


C4 


Oil 


Mass. /Garfield 


S/B 


13 


16 


1 


A5 


C4 






W/B 


14 


16 


1 


A5 


C4 






N/B 


5 


16 


1 


A5 


C4 






E/B 


6 


16 


1 


A5 


C4 


012 


Wisconsin/R 


S/B 


15 


16 


1 


A5 


C4 






W/B 


8 


16 


2 


A5| 


C5 






N/B 


7 


16 


1 


A5 


C4 






E/B 





16 


2 


A5' 


C5 


015 


M/Key Bridge 


W/B L.T. 


9 


16 


2 


A5 


C5 






N/BR. T„ 


1 


16 


2 


A5 


C5 






E/B 


3 


16 


2 


-A5 


£5 






E/BR.T. 


4 


16 


2 


A5 


C5 






N/B L.T. 


2 


16 


2 


A5 


C5 


017 


Wisconsin/M 


S/B 


10 


16 


2 


A5 


C5 






W/B 


11 


16 


2 


A5 


C5 






N/B 


5 


16 


2 


A5 


C5 






E/B 


6 


16 


2 


A5 


C5 



Note: N/B = Northbound, S/B = Southbound, E/B = Eastbound, W/B = Westbound, 
L. T. = Left turn, R. T. « Right turn. 



B-13 



Table B-2. Map Display Test Fixture, 
Link Test Address/Location (Continued) 









Address 


State 


Card Location 


Ref. 


Intersection 


Direction 


(BCD) 


Bit 
(UP) 


(Ref. Fie 


. B-2) 


Contr. 


A 


B 


Trav 


Slot\ 


018 


M/31 8t * 


W/B 


12 


16 


2 


A5 


C5 






E/B 


7 


16 


2 


A5 


C5 


019 


Peon. /29 th ' 


W/B 


14 


16 


2 


A5 


C5 






E/B 


1 


17 




A5 


C7 






E/B 


2 


17 




A5 


C7 


021 


Penn.^e^* 


W/B 


15 


16 




A5 


C5 






E/B 


3 


17 




A5 


C7 






E/B 


4 


17 




A5 


C7 


023 


Penn./^YL 


S/B 


8 


17 




A5 


C7 






W/B 


9 


17 




A5 


C7 






N/B 


5 


17 




A5 


C7 






E/B 


6 


17 




A5 


C7 






W/B 


10 


17 




A5 


C7 


024 


Penn./M 01 * 


S/B 


11 


17 




A5 


C7 






W/B 


12 


17 




A5 


C7 






N/B 


7 


17 




A5 


C7 






E/B 





17 


2 


A5 


C8 






W/B 


13 


17 


1 


A5 


C7 






E/B 


1 


17 


2 


A5 


C8 


031 


Constitution^™ 1 * 


S/B 


14 


17 


1 


A5 


C7 






W/B 


15 


17 


1 


A5 


C7 






N/B 


2 


17 


2 


A5 


C8 






3/B 


3- 


17 


2 


A5 


C8 


032 


Constitution/22 nd * 


W/B 


8 


17 


2 


A5 


C8 


033 


Constitutional 8 ** 


W/B 


9 


17 


2 


A5 


C8 




i 


E/B 


5 


17 


2 


A5 


C8 






E/B L.T. 


6 


17 


2 


A5 


C8 



B-14 



Table B-2„ Map Display Test Fixture 
Link Test Address/Location (Continued) 



Ref. 


Intersection 


Direction 


Address 
(BCD) 


! State 
Bit 
(UP) 


Card Location 
(Ref. Fig. B-2) 


Contr. 


A B 


Tray 


Slot 


037 


Virginia/19 


S/B 


10 17 


2 


A5 


C8 


039 


Constitution^ 1 * 1 * 


W/B 


11 | 17 


2 


A5 


C8 






E/B 


7 17 


2 


A5 


C8 


040 


Constitution/1 9 th * 


S/BR.T. 


12 


17 


2 


A5 


C8 






W/B 


14 


2 


A5 


C8 






E/B 





18 


1 


A5 


C10 






S/B L.T. 


13 


17 


2 


A5 


C8 


041 


Constitution/is 01, 


W/B 


15 


17 


2 


A5 


C8 






E/B 


1 


18 




A5 


C10 






E/B L.T. 


2 18 




A5 


C10 






"W/B R.T. 


8 


18 




A5 


C10 


042 


Constitution/1 7 th * 


S/B 


9 


18 




A5 


C10 






W/B 


10 | 18 




A5 


C10 






N/B 


3 


18 


1 


A5 


C10 






E/B 


4 


18 


* 


A5 


C10 


043 


E (W/B)/20 th * 


W/B 


11 


18 




A5 


C10 






N/B 


5 18 




A5 


C10 


044 


E (W/B)/21 St - 


S/B 


12 


18 


! 


A5 


C10 


045 


E (W/BJ/IS* 11 * 


S/B 


13 


18 


1 


A5 


C10 






W/B 


14 


18 


1 


A5 


C10 


046 


E (W/BJ/IS** 1 * 


W/B 


15 


18 


1 


A5 


C10 






N/B 


6 


18 


1 


A5 


C10 


047 


E (E/B)/20 th< 


N/B 


7 


18 


1 


A5 


C10 






E/B 


18 


2 


A5 


Cll 


048 


E (E/B)/19 th * 


S/B 


8 18 


2 


A5 


Cll 






E/B 


1 


18 


2 


A5 


Cll 



B-15 





Table B-2. Map Display Test Fixture, 
Link Test Address/Location (Continued) 






Ref. 


Intersection 


Direction 


Address 
(BCD) 


State 

Bit 

(UP) 


Card Location 
(Ref. Fig. B-2) 


Contr. 


A 


B 


Tray 


Slot 


049 


E (E/B)/18 th * 


N/B 


2 


18 


2 


A5 


Cll 






E/B 


3 


18 


2 


A5 


Cll 


050 


Constitution/Henry 
Bacon Dr. 


W/B 
N/B R.T. 


9 
4 


18 
18 


2 
2 


A5 
A5 


Cll 
Cll 






E/B 


5 


18 " 


2 


A5 


Cll 






W/B L.T. 


10 


18 


2 


A5 


Cll 


051 


H^'/F 


N/B 


6 


18 


2 


A5 


Cll 






E/B 


7 


18 


2 


A5 


Cll 


052 


17 th * /N.Y. Ave. 


S/B 


11 


18 


2 


A5 


Cll 






N/B 





19 


1 


A5 


C13 


053 


E (E/B)/17 th ' 


S/B 


12 


18 


2 


A5 


Cll 






N/B 


1 


19 


1 


A5 


CIS 






E/B 


2 


19 


1 


A5 


C13 


054 


Penn./lS 01 * 


W/B 


13 


18 


2 


A5 


Cll 






N/B 


3 


19 


1 


A5 


C13 






E/B 


4 


19 


1 


A5 


C13 






E/B 


5 


19 


1 


A5 


C13 


055 


Penn./n 01, 


S/B 


14 


18 


2 


A5 


Cll 






W/B 


15 


18 


2 


A5 


Cll 






N/B 


6 


id 


1 


A5 


C13 






E/B 


7 


19 


1 


A5 


C13 


056 


Po*in. /Jackson 


S/B 


8 


19 


1 


A5 


CIS 






E/B 





19 


2 


A5 


C14 


057 


u/i**- 


W/B 


9 


19 


1 


A5 


CIS 






N/B 


1 


19 


2 


A5 


C14 


058 


17 th * /Executive 


S/B 


10 


19 


1 


A5 


C13 



Table B-2. Map Display Test Fixture, 
Link Test Address/Location (Continued) 



Ref. 


Intersection 


Direction 


Address 

(BCD) 


State 

Bit 

(UP) 


Card Location 
(Ref. Fig. B-2) 


Contr. 


A B 


Tray 


Slot 


059 


ic/^- 


S/B 


11 19 


1 


A5 


C13 






W/B 


12 19 


1 


A5 


C13 






E/B 


2 


19 


2 


A5 


C14 


060 


K/IB 411 * 


W/B 


13 


19 


1 


A5 


C13 






N/B 


3 


-19 


2 


A5 


C14 






E/B 


4 


19 


2 


A5 


C14 


061 


H^VConn./K 


S/B 


14 


19 


1 


A5 


C13 






W/B 


15 


19 


1 


A5 


C13 






N/B 


5 


19 


2 


A5 


C14 






E/B 


6 


19 


2 


A5 


C14 


063 


1719 th - 


S/B 


8 


19 


2 


A5 


C14 


064 


i/is" 1 * 


N/B 


7 


19 


2 


A5 


C14 


0S§ 


l/17 th * 


S/B 


9 


19 


2 


A5 


C14 






N/B 





20 


1 


A5 


C16 






S/B L.T. 


10 


19 


2 


A5 


C14 


066 


Penn./^^VH 


S/B 


11 


19 


2 


A5 


C14 






W/B 


12 


19 


2 


A5 


C14 






E/B 


1 


20 


1 


A5 


C16 






W/B L.T. 


13 


19 


2 


A5 


C14 






W/B 


14 


19 


2 


A5 


C14 


067 


H/IS 01 * 


W/B 


15 


19 


2 


A5 


C14 






r./B 


2 


20 


1 


A5 


C16 


068 


H/17 th * 


S/B 


8 


20 


1 


A5 


C16 






W/B 


9 


20 


1 


A5 


C16 






N/B 


3 


20 


1 


A5 


C16 



Table B- 2. Map Display Test Fixture, 
Link Test Address/Location (Continued) 



Ref. 


Intersection 


Direction 


Address 
(BCD) 


State 

Bit 

(UP) 


Card Location 
(Ref. Fig. B-2) 


Contr. 


A 


B 


Tray 


Slot 


069 


Penn./20 th * 


W/B 


10 


20 


1 


A5 


C16 






N/B 


4 


20 


1 


A5 


C16 






E/B 


5 


20 


1 


A5 


C16 






E/B 


6 


20 


1 


A5 


C16 


070 


Penn./21 St * 


S/B 


11 


20 " : 


1 


A5 


C16 






W/B 


12 


20 


1 


A5 


C16 






E/B 


7 


20 


1 


A5 


C16 






W/B 


13 


20 


1 


A5 


C16 


071 


Penn./22 nd * 


N/B 





20 


2 


A5 


C17 






E/B 


1 


20 


2 


A5 


C17 


072 


K/21 st * 


S/B 


14 


20 


1 


A5 


C16 






W/B 


15 


20 


1 


A5 


C16 






E/B 


2 


20 


2 


A5 


C17 


073 


^/20 th * 


W/B 


8 


20 


2 


A5 


C17 






N/B 


3 


20 


2 


A5 


C17 






E/B 


4 


20 


2 


A5 


C17 


074 


L^S 1 ^* 


S/B 


9 


20 


2 


A5 


C17 




not used 


W/B 


10 


20 


2 


A5 


C17 






E/B 


5 


20 


2 


A5 


C17 


075 


L/New Hampshire 


N/B 


6 


20 


2 


A5 


C17 




not used 


S/B 


11 


20 


2 


A5 


C17 




not used 


W/B 


12 


20 


2 


A5 


C17 






E/B 





21 


1 


A5 


C19 






N/B 


7 


20 


2 


A5 


C17 


076 


L/21 St ' 


S/B 


13 


20 


2 


A5 


C17 




not used 


W/B 


14 


20 


2 


A5 


C17 






E/B 


1 


21 


1 


A5 


C19 



B-18 



Table B-2. Map Display Test Fixture, 
Link Test Address/Location (Continued) 



Ref. 


Intersection 


Direction 


Address 
(BCD) 


State 

Bit 

(UP) 


Card Location 
(Ref. Fig. B-2) 


Contr. 


A 


B 


Tray 


Slot 


077 


L/20 th * 




N/B 


2 


21 


1 


A5 


C19 






not used 


W/B 


15 


20 


2 


AS 


C17 








E/B 


3 


21 


1 


A5 


C19 


081 


h/n*- 




S/B 


12 


21 


1 


A5 


C19 






not used 


W/B 


13 


~21 


1 


A5 


C19 








N/B 


7 


21 


1 


A5 


C19 








E/B 





21 


2 


A5 


C20 


082 


L/16 01 - 




S/B 


14 


21 


1 


A5 


C19 






not used 


W/B 


15 


21 


1 


A5 


C19 








N/B 


1 


21 


2 


A5 


C20 








E/B 


2 


21 


2 


A5 


C20 


083 


L/^ 




S/B 


8 


21 


2 


A5 


C20 






not used 


W/B 


9 


21 


2 


A5 


C20 








N/B 


3 


21 


2 


A5 


C20 








E/B 


4 


21 


2 


A5 


C2Q 


084 


L/19 01 - 




S/B 


10 


21 


2 


A5 


C20 






not used 


W/B 


11 


21 


2 


A5 


C20 








E/B 


5 


21 


2 


A5 


C20 


085 


L/ie 01 - 




N/B 


6 


21 


2 


A5 


C20 






not used 


W/B 


12 


21 


2 


A5 


C20 








E/B 


7 


21 


2 


A5 


C20 


086 


L/Conn. 




S'B 


13 21 


2 


A5 


C20 






not used 


W/B 


14 1 21 


2 


A5 


C20 








N/B 


22 


1 


A5 


C22 








E/B 


1 


22 


1 


A5 


C22 


087 


K/17 th ' 




S/B 


15 


21 


2 


A5 


C20 








W/B 


8 


22 


1 


A5 


C22 








N/B 


2 


22 


1 


A5 


C22 








E/B 


3 


22 


1 


A5 


C22 



B-19 



Table B-2. Map Display Test Fixture, 
Link Test Address/Location (Continued) 



Ref. 


Intersection 


Direction 


Address 
(BCD) 


State 

Bit 

(UP) 


Card Location 
(Ref. Fig. B-2) 


Contr. 


A 


B 


Tray 


Slot 


088 


K/16 tlu 


S/B 


9 


22 


1 


A5 


C22 






W/B 


10 


22 


1 


A5 


C22 






N/B 


4 


22 


1 


A5 


C22 






E/B 


5 


22 


1 


A5 


C22 


089 


K/^' 


S/B 


11 


22 ' 


1 


A5 


C22 






W/B 


12 


22 


1 


A5 


C22 






N/B 


6 


22 


1 


A5 


C22 






E/B 


7 


22 


1 


A5 


C22 


090 


i/n^'/Conn. 


S/B 


13 


22 


1 


A5 


C22 






N/B 





22 


2 


A5 


C23 






E/B 


1 


22 


2 


A5 


C23 


091 


I/18 th ' 


S/B 


14 


22 


1 


A5 


C22 






N/B 


2 


22 


2 


A5 


C23 






S/B L.T. 


15 


22 


1 


A5 


C22 


093 


H/Jackson/Conn . 


S/B 


8 


22 


2 


A5 


C23 






W/B 


9 


22 


2 


A5 


C23 






N/B 


3 


22 


2 


A5 


C23 


094 


H/16 th * 


S/B 


10 


22 


2 


A5 


C23 






W/B 


11 


22 


2 


A5 


C23 


096 


L/Vermont 


S/B 


12 


22 


2 


A5 


£23 




not used 


W/B 


13 


22 


2 


A5 


C23 






N/B 


4 


22 


2 


A5 


C23 






E/B 


5 


22 


2 


A5 


C23 


097 


L/14 th * 


S/B 


14 


22 


2 


A5 


C23 




not used 


W/B 


15 


22 


2 


A5 


C23 






N/B 


6 


22 


2 


A5 


C23 






E/B 


7 


22 


2 


A5 


C23 



B-20 



Table B-2. Map Display Test Fixture, 
Link Test Address/Location (Continued) 



Ref. 


Intersection 


Direction 


Address 
(BCD) 


State 

Bit 

(UP) 


Card Location 
(Ref. Fig. B-2) 


Contr. 


A 


B 


Tray 


Slot 


099 


K/u" 1 * 


S/B 


8 


23 




A5 


C25 






W/B 


9 


23 




A5 


C25 






N/B 





23 




A5 


C25 






E/B 


1 


23 




A5 


C25 






N/B L.T. 


2 


23 




A5 


C25 


100 


K/l 5 th '/Vermont 


S/B 


10 


23 




A5 


C25 






W/B 


11 


23 




A5 


C25 






N/B 


3 


23 




A5 


C25 






E/B 


4 


23 




A5 


C25 


101 


K/IO** 1 * 


W/B 


12 


23 




A5 


C25 






E/B 


5 


23 




A5 


C25 


102 


Independence/ 14 * 


S/B 


13 


23 




A5 


C25 






W/B 


14 


23 




A5 


C25 






N/B 


6 


23 


1 


A5 


C25 






E/B 


7 


23 


1 


A5 


C25 


115 


18 th */ F 


N/B 





23 


2 


A5 


C26 






E/B 


1 


23 


2 


A5 


C26 


119 


G/21 st * 


S/B 


15 


23 


1 


A5 


C25 






W/B 


8 


23 


2 


A5 


C26 


120 


Wisconsin/Macomb 


S/B 


9 


23 


2 


A5 


C20 






W/B 


10 


23 


2 


A5 


C26 






N/B 


2 


23 


2 


A5 


C26 






E/B 


3 


23 


2 


A5 


C2Q 


121 


Wisconsin/Calvert 


S/B 


11 


23 


2 


A5 


C26 






W/B 


12 


23 


2 


A5 


C26 






N/B 


4 


23 


2 


A5 


C28 






E/B 


5 


23 


2 


A5 


C26 



B-21 



Table B-2. Map Display Test Fixture, 
Link Test Address/Location (Continued) 



Ref. 


Intersection 


Direction 


Address 
(BCD) 


State 

Bit 

(UP)* 


Card Location 
(Ref. Fig. B-2) 


Contr. 


A ! B 


Tray 


Slot 


123 


Wisconsin/W Place 


S/B 


13 


23 


2 


A5 


C26 






N/B 


6 


23 


2 


A5 


C26 






E/B 


7 


23 


2 


A5 


C26 




Mass. /22 nd * 


S/B 


9 


21 


1 


A5 


C19 






W/B 


8 


21 


1 


A5 


C19 






E/B 


4 


21 


1 


A5 


C19 




Rhode Is. /Conn. 


S/B 


6 


21 


1 


A5 


C19 






W/B 


5 


21 


1 


A5 


C19 






E/B 


10 


21 


1 


A5 


C19 



B.2 UTCS FS Equipment Card Extender 

The Model HB-35545 Card Extender shown in Figures B-4 and B-5 is used for 
system adjustment and maintenance of RFL tone equipment. The Card Extender includes 
an etched circuit board and a set of keyed inserts. Front panel mounted switches and 
jacks provide a convenient means by which audio and dc circuits may be switched or keyed. 

B.2. 1 Card Extender Types 

There are three types of card extenders. 

(1) Standard Card 

(2) Reversed Panel Card 

(3) Modified Card (marked with yellow band). 

The Standard Card is described in the Operation and Maintenance Manual for FS 
Communication Equipment;. Refer to Table 1-1 Manual 7. 



B-22 



i 




Figure B-4. Extender Board, Front Panel 
B-23 




CAMC iXmtMSi 
HB 35 545 



Bo&Ht**, Anr Jmrmt>f, U.S. A. 



Figure B-5. Extender Board, P.C. View 
B-24 



The Reversed Panel Card is for use in the Field Cabinets in the extreme right 
module slot. 



• CAUTION J 

ONLY THE MODIFIED CARD (MARKED WITH 
THE YELLOW BAND) SHOULD BE USED IN 
CENTRAL IN THE ADVANCE AND HOLD 
TRANSMITTER SLOT TO PREVENT DAMAGE 
TO THE CIU. THE MODIFIED CARD WILL 
ONLY KEY SPACE WHEN THE TEST -ON 
SWITCH IS IN THE TEST POSITION. THE 
SPACE PIN IS NOT WIRED TO THE CIU. A 
CURRENT LIMITING RESISTOR HAS BEEN 
ADDED BETWEEN PIN 4 AND THE ARM OF 
THE MARK- CTR-SP ACE SWITCH TO LIMIT 
THE VOLTAGE THE CIU OUTPUT CARD 
SEES. 



B-25/B-26 



APPENDIX C 



REFERENCE TABLES 



This appendix contains Reference Tables C~l through C-10 which are to be used 
in the UTCS/BPS System. 

All signal numbers in Tables C-l through C-3 and C-8 are Computer numbers. 
The corresponding Field numbers are listed in the Central Site Signal Interface Table. See 
Figures 2-9, 2-10 and 2-12 for card and pin locations. 

TABLE C -1. BPS SIGNAL CONNECTIONS TO CIU 



BUS DETECTOR NUMBER 



INPUT TO CIU (UD1011) 



BUS STOP (BS) 



TRAY SLOT PINS 



BUS THROUGH (BT) 



TRAY SLOT PINS 



BUS 



TRAY 



SRROR (BE) 



SLOT 



PINS 



1- 8 

9- 16 

17- 24 

25- 32 

33- 40 

41- 48 

49- 56 

57- 64 

65- 72 

73- 80 

81- 88 

89- 96 

97-104 

105-112 

113-120 

121-128 

129-136 

137-144 

SPARES 

SPARES 



PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 
PB 



9 
11 
13 
15 

9 
11 
13 
15 
17 
19 
21 
23 
17 
19 
21 
^3 
25 
27 
29 
31 



1-8 

1-8 

1-8 

1-8 

A-H 

A-H 

A-H 

A-H 

1-8 

1-8 

1-8 

1-8 

A-H 

A-H 

A-h 

A-H 

1-8 

1-8 

1-8 

1-8 



PB 
PB 
PB 
PB 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 



25 

27 

29 

31 

1 

3 

5 

7 

1 

3 

5 

7 

£ 

11 

13 

15 

9 

11 

13 

15 



A-H 

A-H 

A-H 

A-H 

1-8 

1-8 

1-8 

1-8 

A-H 

A-H 

A-H 

A-H 



1-8 

1-8 

1-8 

A-H 

A-H 

A-H 

A-H 



PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
PD 
SD 
PD 
PD 
PD 
PF 
PF 
PF 
PF 



17 

19 

21 

23 

17 

19 

21 

23 

25 

27 

29 

31 

M 

27 

29 

31 

1 

3 

5 

7 



1-8 

1-8 

1-8 

1-8 

A-H 

A-H 

A-H 

A-H 

1-8 

1-8 

1-8 

1-8 

A-H 

A-H 

A-H 

1-8 

1-8 

1-8 

1-8 



C -1 



TABLE C-2. VEHICLE SIGNAL CONNECTIONS TO CIU 


VEHICLE DETECTOR 


INPUT TO CIU 
VEHICLE DETECT (V) 
UD 1011 


NUMBER 


TRAY 


SLOT 


PINS 


1- 8 


PF 


1 


A-H 


9- 16 


PF 


3 


A-H 


17- 24 


PF 


5 


A-H 


25- 32 


PF" 


7 


A-H 


33- 40 


PF 


9 


1-8 


41- 48 


PF 


11 


1-8 


49- 56 


PF 


13 


1-8 


57- 64 


PF 


15 


1-8 


65- 72 


PF 


9 


A-H 


79- 80 


PF 


11 


A-H 


81- 88 


PF 


13 


A-H 


89- 96 


PF 


15 


A-H 


97-104 


PF 


17 


1-8 


105-112 


PF 


19 


1-8 


113-120 


PF 


21 


1-8 


121-128 


PF 


23 


1-8 


129-136 


PF 


17 


A-H 


137-144 


PF 


19 


A-H 


145-152 


PF 


21 


A-H 


159-160 


PF 


•23 


A-H 


161-168 


PF 


25 


1-8 


169-176 


PF 


27 


1-8 


177-184 


PF 


29 


1-8 


185-192 


PF 


31 


1-8 


193-200 


PF 


25 


A-H 


201-208 


PF 


27 


A-H 


209-216 


PF 


29 


A-H 


217-224 


PF 


31 


A-H 


225-232 


PH 


1 


1-8 


233-240 


PH 


3 


1-8 



C-2 



TABLE C-2. Vehicle Signal Connections To CIU (Continued) 



VEHICLE DETECTOR 
NUMBER 



241-248 
249-256 
257-264 
265-272 
273-280 
281-288 
289-296 
297-304 
305 -31 Z 
313-320 
321-328 
329-336 
337-344 
345-352 
353-360 
361-368 
369-376 
377-384 
385-392 
393-400 
401-408 
409-416 
417-424 
425-432 
433-440 
441-448 
449-458 
457-464 
465-472 
473-480 



INPUT TO CIU 
VEHICLE DETECT (V) 
UP 1011 



TRAY 



PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 
PH 



SLOT 



PINS 



1 
3 
5 
7 
9 
11 
13 
15 
9 
11 
13 
15 
17 
19 
21 
23 
17 
19 
31 
23 
25 
27 
29 
31 
25 
27 
29 
31 



1-8 

1-8 

A-H 

A-H 

A-H 

A-H 

1-8 

1-8 

1=8 

1-8 

A-H 

A-H 

A-H 

A-H 

1-8 

1-8 

1-8 

1-8 

A-H 

A-H 



A-H 

1-8 

1-8 

1-8 

1-8 

A-H 

A-H 

A-H 

A-H 



C-3 



TABLE C-2. Vehicle Signal Connections to CIU (Continued) 



VEHICLE DETECTOR 


INPUT TO CIU 
VEHICLE DETECT (V) 
UD 1012 


NUMBER 


TRAY 


SLOT 


PINS 


481-488 

489-496 

497-504 

503-512 

513-517 

Spare 

Spare 

Spare 


PB 

PB 

PB 

PB . 

PB 

PB 

PB 

PB 


9 

11 

13 

: 15 

9 
11 
13 
15 


1-8 

1-8 

1-8 

1-8 

A-E 

A-H 

A-H 

A-H 



.TABLE C-3. COMMUNICATIONS SIGNAL CONNECTIONS TO CIU 



A-PHASE GREEN 


INPUT TO CIU 
UD 1012 
GREEN RETURN (G) 


NUMBER 


TRAY 


SLOT 


PINS 


1- 8 


PB 


17 


1-8 


9- 16 


PB 


19 


1-8 


17- 24 


PB 


21 


1-8 


25- 32 


PB 


23 


1-8 


33- 40 


PB 


17 


A-H 


41- 48 


PB 


19 


-A-H 


49- 56 


PB 


21 


A-H 


57- 64 


PB 


23 


A-H 


65- 72 


PB 


25 


1-8 


73- 80 


PB 27 


1-8 


81- 88 


PB 29 


1-8 


89— 96 


PB 


31 


1-8 


97-104 


PB 


25 


A-H 


105-112 


PB 


27 


A-H 


113-120 


PB 


29 


A-H 


121-128 


PB 


31 


A-H 



C-4 



TABLE C-4. CONTROL PANEL SIGNAL CONNECTIONS TO CIU 





_ ___ __ 

INPUT TO CIU 
UD 1012 


CONTROL 

PANEL 


CONTROL PANEL (P) 
COMMANDS 




TRAY 


SLOT 


PINS 


1- 8 


PD 


1 


1-8 


9- 16 


PD 


3 


1-8 


17- 24 


PD 


5 


1-8 


25- 32 


,;PD 


7 


1-8 


33- 40 


PD 


1 


A-H 


41- 48 


PD 


3 


A-H 


49- 56 


PD 


5 


A-H 


57- 64 


PD 


7 


A-H 


65- 72 


PD 


9 


1-8 


73- 80 


PD 


11 


1-8 


81- 88 


PD 


13 


1-8 


89- 96 


PD 


15 


1-8 


97-104 


PD 


9 


A-H 


105-112 


PD 


11 


A-H 



TABLE C-5. RADIO LINK SIGNAL CONNECTIONS TO CIU 



RADIO LINK 


INPUT TO CIU 
UD 1012 
RADIO LINK (R) 


TRAY 1 SLOT 


PINS 


1- 8 
9- 16 


"*■ " 
PD 

PD 


13 
15 


A-H 
A-H 



C-5 



TABLE C-6. CONTROL PANEL SIGNAL CONNECTIONS FROM CIU 



CONTROL 


OUTPUT FROM CIU 
UD 1012 
CONTROL PANEL (P) 
INSTRUCTIONS 


PANEL 


TRAY 


SLOT 


PINS 


1- 8 
9- 16 


PD 
PD 


17 

19 


1-8 
,8 



TABLE C-7. MAP DISPLAY SIGNAL CONNECTIONS FROM CIU 







OUTPUT FROM CIU 
UD 1012 




MAP 
ELECTRONICS 


MAP DISPLAY (M) 
INSTRUCTIONS 




TRAY 


SLOT 


PINS 




Strobe, State, 










Bit 1 , and Spares 


PD 


25 


1-8 




Bits 2-9 


PD 


27 


1-8 




State 2-Spares 


PD 


29 


1-8 



TABLE C-8. COMMUNICATIONS SIGNAL CONNECTIONS FROM CIU 





OUTPUT FROM CIU 
UD 1012 
HOLD (H) ADVANCE (A) 


COMMUNICATIONS 


TRAY 


SLOT 


PINS 


HOLD 1- 8 


PF 


1 


1-8 


HOLD 9- 16 


PF 


3 


1-8 


HOLD 17- 24 


PF 1 5 


1-8 


HOLD 25- 32 


PF 7 


1-8 


HOLD 33- 40 


PF 


9 


1-8 


HOLD 41- 48 


PF 


11 


1-8 


HOLD 49- 56 


PF 


13 


1-8 


HOLD 57- 64 


PF 15 


1-8 


HOLD 65- 72 


PF 17 


1-8 


HOLD 73- 80 


PF 


19 


1-8 



C-6 



TABLE C-8. Communications Signal Connections From CIU (Continued) 





OUTPUT FROM CIU 

UD 1012 

HOLD (H) ADVANCE (A) 


COMMUNICATIONS 


TRAY 


SLOT 


PINS 


HOLD 81- 88 


PF 


21 


1-8 


HOLD 89- 96 


PF 


23 


1-8 


HOLD 97-104 


PF 


25 


1-8 


HOLD 105-112 


-" PF 


27 


1-8 


HOLD 113-120 


PF 


29 


1-8 


HOLD 121-128 


PF 


31 


1-8 


ADVANCE 1- 8 


PH 


1 


1-8 


ADVANCE 9- 16 


PH 


3 


1-8 


ADVANCE 17-24 


PH 


5 


1-8 


ADVANCE 25- 32 


PH 


7 


1-8 


ADVANCE 33- 40 


PH 


9 


1-8 


ADVANCE 41- 48 


PH 


11 


1-8 


ADVANCE 49- 46 


PH 


13 


1-8 


ADVANCE 57- 64 


PH 


15 


1-8 


ADVANCE 65-72 


PH 


17 


1-8 


ADVANCE 73- 80 


PH 


19 


1-8 


ADVANCE 81-88 


PH 


21 


1-8 


ADVANCE 89- 96 


PH 


23 


1-8 


ADVANCE 97-104 


PH 


25 


1-8 


ADVANCE 105-112 


PH 


27 


1-8 


ADVANCE 113-120 


PH 


29 


1-8 


ADVANCE 121-128 


PH 


31 


1-8 



C-7 



TABLE C-9. INPUT TELEPHONE LINE vs AMPLIFIER MODULE LOCATION 



INPUT TELEPHONE 
NUMBER (TL) 


COMMUNICATIONS 
CABINET UD NUMBER, 
POSITION, and AMPLIFIER 
CHANNEL NUMBER 




1 


501-A7-1 




2 


501-A7-2 




3 


501-A9-1 




4 


„- 501-A9-2 




5 


508-A7-1 




6 


502-A7-1 




7 


501-A11-1 




8 


502-A7-2 




9 


509-A7-1 



10 

11 

12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 



502-A9-1 

502-A9-2 

502-A11-1 

509-A7-2 

505-A7-1 

505-A7-2 

506-A7-1 

504-A7-1 

506-A7-2 

506-A9-1 

507-A7-1 

506 -All -2 

507-A7-2 

508-A7-2 

506-A9-2 

503-A7-1 

505-A9-1 

505-A9-2 

506 -Al 1-1 

504-A7-2 

504-A9-1 



C-8 



TABLE C-9. Input Telephone Line vs Amplifier Module Location (Continued) 


INPUT TELEPHONE 
NUMBER (TL) 


COMMUNICATIONS 
CABINET UD NUMBER, 
POSITION, and AMPLIFIER 
CHANNEL NUMBER 


31 


505-A11-1 


32 


505-A11-2 


33 


503-A7-2 


34 


504-A9-2 


35 


504-A11-1 


36 


509-A9-1 


37 


507-A9-1 


38 


508-A9-1 


39 


508-A9-2 


40 


508-A11-1 


41 


509-A9-2 


42 


507-A9-2 


43 


508-A11-2 


44 


509-A11-1 


45 


509-A11-2 


46 


504-A11-2 


47 


501 -All -2 


48 


503-A9-1 


49 


507-A11-1 


50 


507-A11-2 


51 


503-A9-2 


52 


510-A7-1 


53 


503-A11-1 


54 


503-A11-2 


59 


502-A11-2 



C-9 



TABLE C-10. CHASSIS TYPE vs RFL DRAWING NUMBER 



CHASSIS TYPE 


RFL DRAWING NUMBER 


Al-1 through A 1-8 




12,500B 


A2-l,2,4,5,6,8 




12,501 


A2-7 




12,502 


A2-9 




12,503 


A3-l,2,3 




12,504 


A3-4,5,6 


-• : ' 


12,505 


A3-7,9 




12,506 


A3-10,ll 




12,507 


A3-12 




12,508 


A4-l,2,4,6,7,8,9,ll,12 




12,509 


A4-3,5,13 




12,510 


A4-10-1 




12,511 


A4-10-2 




12,512 


A5-l,2,4 




12,513 


A5-3 




12,514 



NOTE 

Chassis type numbers as shown on the RFL Dwgs. 
are three digits, that is A-l-1-1. The last digit 
defines the frequency distribution of the plug -in 
modules. 



GPO 87 2- 46 5 



C-10 



DOT LIBRARY 




0Dni7lfl 




R&D